3-Aminopyrazine-2-carboxylic acid stands out as a crystalline solid with a reliable consistency found in chemistry labs and manufacturing floors. The molecular formula C5H5N3O2 points to a makeup that draws interest from academic circles and industry chemists alike. You can spot this compound under the microscope as colorless needles, and with the right touch, it takes shape as a white or pale powder, rarely clumping into troublesome masses. Some labs even process it into fine flakes, showing off the flexibility of its physical form. This isn’t just for visual effect — the integrity and texture of these solids can affect how well the substance dissolves for research, synthesis, or production. With a molar mass of 139.11 g/mol and a melting point in the 224-228°C range, 3-aminopyrazine-2-carboxylic acid handles moderate heat without breaking down, supporting more complicated reactions in controlled environments. The density stays close to 1.546 g/cm³, providing chemists with consistent data for weighing and mixing.
3-Aminopyrazine-2-carboxylic acid shines when it comes to functional groups. One can find both an amino and a carboxylic acid group attached to the pyrazine ring, which changes the game for any chemist interested in reactions like coupling and polymerizations. It dissolves in solvents like DMSO or dimethylformamide, and barely budges in water at room temperature, making it practical for specialized syntheses. The compound maintains solid stability under typical storage conditions—think well-sealed containers away from bright light and stubborn humidity, inside a dry, well-ventilated cabinet. Since it does not release fumes or react violently to air, users feel at ease during handling. The molecular structure, a six-membered aromatic ring bearing nitrogen atoms, forms the backbone for pharmaceuticals and advanced material innovations.
Checking the specifications, 3-aminopyrazine-2-carboxylic acid often comes with purity ratings above 98%, confirmed by HPLC or NMR. Industrial buyers sometimes go straight to the certificate of analysis to see exact moisture, ash, or trace impurities. The HS Code sits at 2933.99, grouping it among heterocyclic compounds for customs and regulatory filing. Each lot gets tracked through batch numbers, traceable right back to the original raw material source. For suppliers, packaging makes a difference: sealed poly bottles for small labs; lined fiber drums for factories. The acid does not appear as a liquid or a solution under normal storage but can dissolve for synthesis and formulation with the proper solvents. Bulk shipments usually include careful stoichiometric labeling and lab-tested density figures.
Working with 3-aminopyrazine-2-carboxylic acid means keeping an eye on risk factors. This chemical gets flagged as hazardous because of its potential to cause mild skin or eye irritation, especially if mishandled or inhaled as a dust. PPE—nitrile gloves, goggles, dust masks—forms the minimum barrier in labs where fine powders float. Spills rarely lead to fire, but lab teams use grounded containers and careful weighing to stop accidents. Storage guidelines call for keeping the acid away from strong oxidizers and sources of spark. If lab rules and safety sheets get ignored, mild headaches or a rash can creep in after prolonged exposure. Waste demands professional collection and disposal, as the compound breaks down slowly in the environment. Inside a well-managed operation, these hazards get minimized, and the material supports research into new antibiotics, enzyme inhibitors, and agricultural treatments.
The pyrazine core of 3-aminopyrazine-2-carboxylic acid opens doors for people working on pharmaceuticals and advanced materials. Drug candidates spring from that six-membered ring, as chemists slot in side chains or alter groups to target receptors in the body. Some biochemists search for enzyme inhibitors, using this acid as a scaffold for blocking microbial growth or protein interactions. Crop scientists explore the compound for plant protection, banking on its stability, slow breakdown, and ease of application. Electronics teams study derivatives for energy storage, chasing the electron-shuttling skills of that aromatic backbone. In each case, purity, density, and crystal form shape how well the acid adapts to real-world tests. The raw material story winds back to pyrazine derivatives, produced by careful synthesis or extraction, with each batch undergoing lab checks for structural compliance and contamination. The acid rarely changes hands as a liquid, but research teams dissolve it as needed in solvents, letting the solid’s precision guide the way toward new breakthroughs.
