CAS Registry Number

CAS 288-94-8 — 1(H)-Tetrazole - DO NOT VERIFY

1(H)-Tetrazole is a five-membered heterocyclic compound containing four nitrogen atoms, widely used as a key intermediate in pharmaceutical synthesis, particularly for angiotensin II receptor antagonists like losartan. It is also employed in agrochemical formulations and as a building block for other heterocycles. CAS 288-94-8, molecular formula CH₂N₄, molecular weight 70.05 g/mol. Store at 2–8°C under inert gas, away from oxidizing agents and moisture. Hazardous: corrosive, toxic if inhaled or ingested, and may cause severe skin burns. Molekula supplies 1(H)-Tetrazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.

Also known as: Tetrazole 5% solution in gamma-Butyrolactone/Dimethylsulfoxide mixture (80:20) · Tetrazole 0.45M solution in acetonitrile · Tetrazole 0.5M solution in acetonitrile · 1H-Tetrazole 5% solution (w/w) in water · Tetrazole 5% solution in N-Methylpyrrolidone · Tetrazole 1% solution in N-Methylpyrrolidone