CAS Registry Number

CAS 125700-67-6 — TBTU (o-Benzotriazol-1-yl-N,N,N',N'-tetramethyluronium tetrafluoroborate)

TBTU is a coupling reagent used in peptide synthesis and organic chemistry to facilitate amide bond formation. It is a stable, crystalline solid with the molecular formula C13H12N4O·BF4 and a molecular weight of 327.07 g/mol. It is stored at ambient temperature and is classified as dangerous due to its reactivity. TBTU is available under CAS number 125700-67-6. Molekula supplies TBTU from research to bulk quantities with full documentation and ISO 9001:2015 traceability.