Tag: 500-600

Analysis of the heterogeneous dynamics of imidazolium-based [Tf₂N^–] ionic liquids using molecular simulation was written by Androulaki, Eleni;Vergadou, Niki;Economou, Ioannis G.. And the article was included in Molecular Physics in 2014.Category: imidazoles-derivatives This article mentions the following:

The complex dynamic behavior of the imidazolium-based ionic liquids [C_nmim⁺][Tf₂N^–], n = 4, 8, 12 is examined at various temperatures and at atm. pressure using mol. dynamics simulation. An existing all-atom force field is further optimized in order to attain reasonable agreement with exptl. data for transport properties, such as self-diffusivities and viscosities. Dynamical heterogeneity phenomena are quantified through the calculation of the non-Gaussian parameter and the deviation of the self-part of the van Hove correlation function from the expected normal distribution. From this anal., ions that move faster or slower than expected are detected in the system. These subsets of ‘fast’ and ‘slow’ ions form individual clusters consisting of either mobile or immobile ions. Detailed anal. of the ions’ diffusion reveals preferential motion along the direction of the alkyl tail for the cation and along the vector that connects the two sulfur atoms for the anion. For the longest alkyl tails, the heterogeneity in the dynamics becomes more pronounced and is preserved for several nanoseconds, especially at low temperatures In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Category: imidazoles-derivatives).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Cation Alkyl Side Chain Length and Symmetry Effects on the Surface Tension of Ionic Liquids was written by Almeida, Hugo F. D.;Freire, Mara G.;Fernandes, Ana M.;Lopes-da-Silva, Jose A.;Morgado, Pedro;Shimizu, Karina;Filipe, Eduardo J. M.;Canongia Lopes, Jose N.;Santos, Luis M. N. B. F.;Coutinho, Joao A. P.. And the article was included in Langmuir in 2014.SDS of cas: 404001-48-5 This article mentions the following:

The surface tension of two series of ILs, R,R’-dialkylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([C_nC_ni.m.][NTf₂]), and R-alkyl-3-methylimidazolium bis[(trifluoromethyl)sulfonyl]imide ([C_nC₁i.m.][NTf₂]), and their dependence on temperature (from 298 to 343 K) have been studied. For both series of ILs the surface tension decreased with an increase in the cation side alkyl chain length up to aliphatic chains no longer than hexyl, here labeled as critical alkyl chain length (CACL). For ILs with aliphatic moieties longer than CACL the surface tension displayed an almost constant value up to [C₁₂C₁₂i.m.][NTf₂] or [C₁₆C₁i.m.][NTf₂]. These constant values further converged to the surface tension of long chain n-alkanes, indicating that, for sufficiently long alkyl side chains, the surface ordering was strongly dominated by the aliphatic tails present in the IL. The enthalpies and entropies of surface were also derived and the critical temperatures were estimated from the exptl. data. The trend of the derived thermodn. properties highlights the effect of the structural organization of the IL at the surface with visible trend shifts occurring at a well-defined CACL in both sym. and asym. series of ILs. The structure of a long-alkyl side chain IL at the vacuum-liquid interface was explored using mol. dynamics simulations. For the sym. series of ILs, at the outermost polar layers, more cations pointed one of their aliphatic tails outward and the other inward, relative to the surface, than cations pointing both tails outward. The number of the former, while being the preferred conformation, exceeds the latter by around 75%. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5SDS of cas: 404001-48-5).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole derivatives generally have good solubility in protic solvents. Simple imidazole derivatives, such as 1H-imidazole, 2-methyl-1H-imidazole, and 1,2-dimethylimidazole, have very high solubility in water. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).SDS of cas: 404001-48-5

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Liquid-Mercury-Supported Langmuir Films of Ionic Liquids: Isotherms, Structure, and Time Evolution was written by Elfassy, Eitan;Mastai, Yitzhak;Pontoni, Diego;Deutsch, Moshe. And the article was included in Langmuir in 2016.Category: imidazoles-derivatives This article mentions the following:

Mercury-supported Langmuir films of imidazolium-based ionic liquids have been studied using surface tension and X-ray reflection spectra. The charge-delocalized ionic liquids exhibited no 2D lateral order but showed diffuse surface-normal electron d. profiles exhibiting gradual mercury penetration into the ionic liquid film, and surface-normal structure evolution over a period of hours. The effect of increasing the nonpolar alkyl chain length was also investigated. The results obtained provide insights into the interactions between these ionic liquids and liquid mercury and about the time evolution of the structure and composition of their interface. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Category: imidazoles-derivatives).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole has become an important synthon in the development of new drugs. Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Category: imidazoles-derivatives

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Representation of phase behavior of ionic liquids and their mixtures using various forms of cubic-two-state equation of state was written by Haghtalab, Ali;Shojaeian, Abolfazl. And the article was included in Fluid Phase Equilibria in 2017.Name: 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide This article mentions the following:

In this work, in addition of Soave-Redlich-Kwong (SRK) equation of state, two other alternative cubic models such as Peng- Robinson (PR) and Cubic Square Well (CSW) EoSs are combined with the Two-State Association Model (TSAM) and the new forms of the Cubic-Two-State equation of state (CTS EoS) as PR-TS and CSW-TS are presented. In the beginning, the present models are used to correlate the saturated vapor pressure and liquid d. of pure water, alcs. and phenol. The models are also employed to predict vapor molar volume and second virial coefficients of pure compounds to explore the predictability of the different type of the CTS models. Also, the liquid d. of different pure ionic liquids (ILs) at various temperatures from 298.15 K up to 500 K and pressure from 0.1 MPa up to 59.59 MPa is correlated and the parameters of the CTS models are obtained. Following successful application of the models for the pure components, using one temperature independent binary interaction parameter, the SRK-TS and PR-TS models are applied to predict the vapor-liquid equilibrium of the several binary mixtures consists of IL with non-association and association components at various temperatures from 298.15 K up to 363.15 K and pressure from 0.09 kPa up to 216 kPa. The results of the SRK-TS and PR-TS models for pure and binary systems containing ILs are in very good agreement with experiments and also are compared with various equations of states that show better results. In overall for the systems that are presented in this work, the PR-TS model shows slightly better results with respect to the SRK-TS model specially in prediction, and PR-TS and SRK-TS models present superiority with respect to the CSW-TS EoS. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Name: 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Many natural products, especially alkaloids, contain the imidazole ring. These imidazoles share the 1,3-C3N2 ring but feature varied substituents. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Name: 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Hiding the Headgroup? Remarkable Similarity in Alkyl Coverage of the Surfaces of Pyrrolidinium- and Imidazolium-Based Ionic Liquids was written by Tesa-Serrate, Maria A.;Smoll, Eric J.;D’Andrea, Lucia;Purcell, Simon M.;Costen, Matthew L.;Bruce, Duncan W.;Slattery, John M.;Minton, Timothy K.;McKendrick, Kenneth G.. And the article was included in Journal of Physical Chemistry C in 2016.Synthetic Route of C18H31F6N3O4S2 This article mentions the following:

The liquid-vacuum interfaces of a series of ionic liquids (ILs) containing 1-alkyl-1-methylpyrrolidinium ([C_nmpyrr]⁺) cations of different alkyl chain lengths have been studied by reactive-atom scattering with laser-induced fluorescence detection (RAS-LIF) and mol. dynamics (MD) simulations. A direct, quant. comparison has been performed between [C_nmpyrr]⁺ and the previously better-characterized 1-alkyl-3-methylimidazolium ([C_nmim]⁺) ILs with the same chain lengths, n, and common anion, bis(trifluoromethylsulfonyl)imide ([Tf₂N]^–). Both RAS-LIF experiments, using O(³P) as the projectile and monitoring OH yield, and MD simulations indicate that the coverage of the surface by alkyl chains is almost independent of the identity of the cation headgroup. Moreover, the potentially abstractable H atoms of the saturated pyrrolidinium ring do not contribute appreciably to the exptl. OH yield. In both these senses, therefore, the headgroup is “hidden” from the probe particles approaching from vacuum. More predictably, the alkyl coverage depends strongly and nonstoichiometrically on the length of the alkyl chain, n, for either cation. These results imply the presence of an alkyl-rich layer on the surface formed by preferential orientation of the cations to expose their chains to the vacuum phase. We suggest that the lack of dependence of the packing d. of this layer on cation type results from compensating effects of charge d. and steric blocking. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Synthetic Route of C18H31F6N3O4S2).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. 1H-imidazole is an imidazole tautomer which has the migrating hydrogen at position 1. It is a conjugate base of an imidazolium cation. It is a conjugate acid of an imidazolide. It is a tautomer of a 4H-imidazole. Imidazole has been usedin the lysis, wash and elution buffer for the purification of histidine tagged Sonic Hedgehog(shh-N) protein, in elution buffer in stepwise gradient for the purification of histidine tagged aldo keto reductases using nickel affinity chromatography, as a component of homogenization buffer for the purification of phagosomal compartments from dendritic cells.Synthetic Route of C18H31F6N3O4S2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Influence of Ionic Liquids on the Viscoelastic Properties of Crude Oil Emulsions was written by Alves, Douglas;Lourenco, Everton;Franceschi, Elton;Santos, Alexandre F.;Santana, Cesar Costapinto;Borges, Gustavo;Dariva, Claudio. And the article was included in Energy & Fuels in 2017.Formula: C18H31F6N3O4S2 This article mentions the following:

Thermochem. treatments are traditionally employed to perform the separation between the oil and water phases in the petroleum industry. The chem. agents have the function of reducing the barrier rigidity formed by natural surfactants present in the emulsion, thus favoring destabilization. The main objective of this study was to analyze the viscoelastic properties of samples composed of water and a crude oil with the addition of distinct ionic liquids The methodol. used to obtain the interfacial properties was the pedant drop technique. The results showed that the addition of the ionic liquids induced a reduction in the interfacial elasticity and an increase in the compressibility of interfacial films. It was also observed that an enhancement in the alkyl chain length has a pos. effect on changing the interfacial properties. The ionic liquid with the highest alkyl chain length investigated ([C₁₂min]⁺[NTf₂]^–) showed the ability to produce the more elastic films for the crude oil investigated. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Formula: C18H31F6N3O4S2).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Formula: C18H31F6N3O4S2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Adsorption and Tribochemical Factors Affecting the Lubrication of Silicon-Based Materials by (Fluorinated) Ionic Liquids was written by Arcifa, Andrea;Rossi, Antonella;Spencer, Nicholas D.. And the article was included in Journal of Physical Chemistry C in 2017.Application In Synthesis of 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide This article mentions the following:

The tribol. behavior of a silica/silicon tribopair lubricated with anhydrous fluorinated ionic liquids was investigated by pin-on-disk tribometry. A first series of tests was designed to detect the onset of surface damage as a function of sliding speed. 1-ethyl-, 1-hexyl-, and 1-dodecyl-3-methylimidazolium bis(trifluoromethylsulfonyl)imide ([EMIM] TFSI, [HMIM] TFSI, and [DDMIM] TFSI, resp.), and 1-ethyl-3-methylimidazolium tris(perfluoroethyl)trifluorophosphate ([EMIM] FAP) were selected as lubricants. Elastohydrodynamic lubrication (EHL) predictive formulas for min. film thickness (h_0 EHL) were used to estimate the value of the critical h_0 EHL at the transition to mixed lubrication, which was identified on the basis of the variations observed in friction upon decreasing the sliding speed. Taking into account the composite roughness of the counterparts (R_q ∼ 1.1 nm), the differences in the critical values of h_0 EHL measured for the various ILs are suggested to reflect changes in the interfacial structure of the confined ILs. In particular, the possible effects associated with the alkyl chain attached to the imidazolium cation or with the type of anion are discussed on the basis of models of the IL-solid interface presented in the recent literature. The second part of the investigation focuses on the tribol. behavior observed with a SiO₂/Si tribopair lubricated with 1-ethyl- and 1-hexyl-3-methylimidazolium-based bis(trifluoromethylsulfonyl)imide ILs under boundary conditions. Tests were carried out under conditions that prevent fluid-film lubrication, so as to allow the study of the boundary-lubrication regime over an extended range of speed. The mechanism of wear was investigated on the basis of a chem., structural, and topog. anal. of the worn surfaces. The prevailing mode of surface damage is described on the basis of a comparison with results previously obtained in tests of other imidazolium-based ILs as lubricants for the same tribopair. The new results revealed some further important details on the relationship between the chem. structure of the IL and the wear mechanism of the investigated tribopair. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Application In Synthesis of 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. The solubility of imidazoles in ethers is lower than that in alcohols and decreases with increasing chain length of the ethers . In contrast, the solubility of benzimidazoles in alcohols (C3–C6) is higher than in water and generally decreases with a Imidazole based anticancer drug find applications in cancer chemotherapy. It is used as buffer component for purification of the histidine tagged recombinant proteins in immobilized metal-affinity chromatography (IMAC).Application In Synthesis of 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Interaction of Imidazolium-Based Room-Temperature Ionic Liquids with DOPC Phospholipid Monolayers: Electrochemical Study was written by Galluzzi, Massimiliano;Zhang, Shengwen;Mohamadi, Shahrzad;Vakurov, Alexander;Podesta, Alessandro;Nelson, Andrew. And the article was included in Langmuir in 2013.Related Products of 404001-48-5 This article mentions the following:

To test the biocompatible character of room-temperature ionic liquids (ILs), the interaction of various ILs with biol. membrane (biomembrane) models was studied. Dioleoyl phosphatidylcholine (DOPC) adsorbed on a Hg electrode forms an impermeable defect-free monolayer which is a well established biomembrane model, prone to be studied by electrochem. techniques. The authors have monitored the modifications of the Hg supported monolayer caused by ILs using rapid cyclic voltammetry (RCV), a.c. voltammetry (ACV), and electrochem. impedance spectroscopy (EIS). Imidazolium-based ILs were studied whose interaction highlighted the role of anion and lateral side chain of cation during the interaction with DOPC monolayers. The hydrophobic and lipophilic character of the IL cations is a primary factor responsible for this interaction. Hg-supported monolayers provide an accurate anal. of the behavior of ILs at the interface of a biomembrane leading to a comprehensive understanding of the interaction mechanisms involved. At the same time, these experiments show that the Hg-phospholipid model is an effective toxicity sensing technique as shown by the correlation between literature in vivo toxicity data and the data. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Related Products of 404001-48-5).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. Imidazole derivatives have antibacterial, antifungal and anticancer functionality. It interacts with DNA and also binds to protein and stops cell division.Related Products of 404001-48-5

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

Influence of Ionic Liquids on the Viscoelastic Properties of Crude Oil Emulsions was written by Alves, Douglas;Lourenco, Everton;Franceschi, Elton;Santos, Alexandre F.;Santana, Cesar Costapinto;Borges, Gustavo;Dariva, Claudio. And the article was included in Energy & Fuels in 2017.Formula: C18H31F6N3O4S2 This article mentions the following:

Thermochem. treatments are traditionally employed to perform the separation between the oil and water phases in the petroleum industry. The chem. agents have the function of reducing the barrier rigidity formed by natural surfactants present in the emulsion, thus favoring destabilization. The main objective of this study was to analyze the viscoelastic properties of samples composed of water and a crude oil with the addition of distinct ionic liquids The methodol. used to obtain the interfacial properties was the pedant drop technique. The results showed that the addition of the ionic liquids induced a reduction in the interfacial elasticity and an increase in the compressibility of interfacial films. It was also observed that an enhancement in the alkyl chain length has a pos. effect on changing the interfacial properties. The ionic liquid with the highest alkyl chain length investigated ([C₁₂min]⁺[NTf₂]^–) showed the ability to produce the more elastic films for the crude oil investigated. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Formula: C18H31F6N3O4S2).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. This ring system is present in important biological building blocks, such as histidine and the related hormone histamine.Formula: C18H31F6N3O4S2

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem

On the relation between reorientation and diffusion in glass-forming ionic liquids with micro-heterogeneous structures was written by Becher, Manuel;Steinruecken, Elisa;Vogel, Michael. And the article was included in Journal of Chemical Physics in 2019.Recommanded Product: 404001-48-5 This article mentions the following:

We investigate complex structure-dynamics relations in glass-forming ionic liquids comprising 1-alkyl-3-methylimidazolium cations and bis(trifluoromethylsulfonyl)imide anions. In doing so, we exploit the microheterogeneous structures emerging when the alkyl length is increased in the range n = 1-12 and use that ^1H and ²H NMR give information about cation dynamics, while ¹⁹F NMR reports on anion motions. Furthermore, we combine spin-lattice relaxation anal., including field-cycling relaxometry, with stimulated-echo experiments to follow reorientation dynamics related to structural relaxation in wide dynamic ranges and we apply static field gradients to probe translational diffusion. The resulting correlation times τ and diffusion coefficients D show Vogel-Fulcher-Tammann temperature dependence. Moreover, they indicate a moderate slowdown of both cation and anion dynamics with increasing alkyl length n. However, the relative diffusivities of the ionic species depend on the cation size, where cations are more mobile for n < 6 and anions for n > 6. Finally, we relate rotational and translational motions in the framework of the Stokes-Einstein-Debye (SED) approach. We find that the SED relation is obeyed for anion dynamics in all samples, while it breaks down for cation dynamics when n is increased. The origin of this SED breakdown is shown to differ fundamentally from that reported previously for conventional glass formers. We argue that an emergence of cation clusters causes a retardation of cation diffusion relative to cation reorientation upon cooling, i.e., the studied ionic liquids show a complex interplay of structural and dynamical properties. (c) 2019 American Institute of Physics. In the experiment, the researchers used many compounds, for example, 3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5Recommanded Product: 404001-48-5).

3-Dodecyl-1-methyl-1H-imidazol-3-ium bis((trifluoromethyl)sulfonyl)amide (cas: 404001-48-5) belongs to imidazole derivatives. Imidazole is the basic core of some natural products such as histidine, purine, histamine and DNA based structures, etc. Among the different heterocyclic compounds, imidazole is better known due to its broad range of chemical and biological properties. The pharmacophore of imidazole exists in bioactive compounds including amino acids, plant growth regulators and therapeutic agents.n increase of the alkyl chain length of the alcohols. Recommanded Product: 404001-48-5

Referemce:
Imidazole – Wikipedia,
Imidazole | C3H4N2 – PubChem