1,2-Diisonicotinoylhydrazine (CAT. No. CP-I10013, CAS No. 4329-75-3) is a high-purity dihydrazide derivative of isonicotinic acid, chemically defined as N,N'-bis(isonicotinoyl)hydrazine, with molecular formula C12H10N4O2 and molecular weight 242.23 g/mol. Synthesised and characterized under stringent quality protocols at Chemicea, this reference-grade compound is primarily utilised as a process-related impurity standard and intermediate in analytical method development, method validation (AMV), and quality-control workflows supporting Isoniazid-based ANDA and pharmacopeial (USP/EP) submissions. Each batch is supplied with a Certificate of Analysis (COA) confirming identity via HPLC, NMR, and TLC, ensuring full analytical traceability for regulatory and R&D use. Available at mg to gram scale with global shipping support from Chemicea's ISO 17034 and ISO 17025 certified facility.