CAS Registry Number

CAS 18039-42-4 — 5-Phenyl-1(H)-tetrazole

5-Phenyl-1(H)-tetrazole is a heterocyclic organic compound used in pharmaceutical synthesis and as a building block in medicinal chemistry. It functions as a bioisostere for carboxylic acids and is employed in the development of active pharmaceutical ingredients. Available in 10 g, 100 g, and 1 kg quantities with purity ≥98%. CAS: 18039-42-4, Molecular formula: C7H6N4, Molecular weight: 146.15, Storage: Ambient, Signal word: Warning. Molekula supplies 5-Phenyl-1(H)-tetrazole from research to bulk quantities with full documentation and ISO 9001:2015 traceability.