CAS Registry Number

CAS 73731-37-0 — Fmoc-L-Threonine

Fmoc-L-Threonine is a protected amino acid derivative used in peptide synthesis to introduce L-threonine residues with controlled reactivity. It is a white to off-white powder with a molecular formula of C19H19NO5 and a molecular weight of 341.36 g/mol. It has a CAS number of 73731-37-0 and should be stored at -15 to -20 °C. The substance is classified with a signal word of Warning due to potential hazards. Molekula supplies Fmoc-L-Threonine from research to bulk quantities with full documentation and ISO 9001:2015 traceability.