Description

3-Aminoisonicotinic acid (CAS No. 7579-20-6) is a high-purity heterocyclic compound with the molecular formula C₆H₆N₂O₂ and IUPAC name 3-aminopyridine-4-carboxylic acid. This fine chemical is an essential building block in pharmaceutical and agrochemical research, offering a unique combination of an amino group and a carboxylic acid functionality on a pyridine scaffold. The compound is supplied as an off-white to beige crystalline powder with ≥95% purity (HPLC), ensuring consistency for demanding synthetic applications. Its molecular weight of 138.12 g/mol and precise structural features make it invaluable for designing novel drug candidates, coordination complexes, and specialty materials. Proper storage at 2-8°C in a tightly sealed container is recommended to maintain stability.

Properties

• CAS Number: 7579-20-6
• Complexity: 138
• IUPAC Name: 3-aminopyridine-4-carboxylic acid
• InChI: InChI=1S/C6H6N2O2/c7-5-3-8-2-1-4(5)6(9)10/h1-3H,7H2,(H,9,10)
• InChI Key: FYEQKMAVRYRMBL-UHFFFAOYSA-N
• Exact Mass: 138.042927438
• Molecular Formula: C6H6N2O2
• Molecular Weight: 138.12
• SMILES: C1=CN=CC(=C1C(=O)O)N
• Topological: 76.2
• Monoisotopic Mass: 138.042927438
• Synonyms: 3-Aminoisonicotinic acid, 7579-20-6, 4-Pyridinecarboxylic acid, 3-amino-, 676-875-3, fyeqkmavryrmbl-uhfffaoysa-n, 3-aminopyridine-4-carboxylic acid, 7529-20-6, 3-Amino-4-pyridinecarboxylic acid, 3-Amino-isonicotinic acid, 3-amino isonicotinic acid, 3-Amino-4-carboxypyridine, MFCD00137840, CHEMBL1383671, 3-Amino-4-pyridinecarboxylicacid, 3-Amino-4-Pyridine Carboxylic Acid, 3-Aminoisonicotinicacid, 3-Amino-4-pyridinecarboxylic Acid; 3-Amino-4-picoline;, 4SV, 3-aminoisonicotinoic acid, 3-arninoisonicotinic acid, Oprea1_716398, MLS000736244, SCHEMBL535569, HMS2627H07, 3-amino-pyridine-4-carboxylic acid, ALBB-008671, BCP09357, BCP27886, CS-D0792, BDBM50122002, SBB002130, STK505487, AKOS005070462, AC-2913, FA50739, PB17122, 3-Aminopyridine-4-carboxylic acid, 95%, BP-11256, HY-65257, SMR000338494, ST091022, SY003330, DB-006331, DB-031885, A2133, A9601, A9626, EN300-40529, 4K-902, AC-907/25000242, AF-807/00322064, AJ-333/25006093, Q27454941, F0001-2973, Z414314668

Application

3-Aminoisonicotinic acid serves as a versatile intermediate in medicinal chemistry, particularly in the synthesis of kinase inhibitors and antibacterial agents. Researchers utilize this compound to develop novel pharmaceutical candidates due to its dual functional groups enabling diverse derivatization. It also finds application in metal-organic framework (MOF) synthesis as a chelating ligand for transition metals. Additionally, the compound is employed in agrochemical research for designing next-generation crop protection agents.

Safety and Hazards

GHS Hazard Statements

• H315 (100%): Causes skin irritation [Warning Skin corrosion/irritation]
• H319 (100%): Causes serious eye irritation [Warning Serious eye damage/eye irritation]
• H335 (95.9%): May cause respiratory irritation [Warning Specific target organ toxicity, single exposure; Respiratory tract irritation]

Precautionary Statements

• P261, P264, P264+P265, P271, P280, P302+P352, P304+P340, P305+P351+P338, P319, P321, P332+P317, P337+P317, P362+P364, P403+P233, P405, and P501

Hazard Classes and Categories

• Skin Irrit. 2 (100%)
• Eye Irrit. 2 (100%)
• STOT SE 3 (95.9%)

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