CAS Registry Number

CAS 109-61-5 — Propyl chloroformate 98%

Propyl chloroformate 98% is an acyl chloride reagent widely used in organic synthesis for the protection of alcohols and amines, as well as in peptide coupling and esterification reactions. It is a colorless to pale yellow liquid with a pungent odor, requiring careful handling due to its reactivity and toxicity. This product has a CAS number of 109-61-5, a molecular formula of C4H7ClO2, and a molecular weight of 122.55 g/mol. It must be stored between 2 to 8°C in a cool, well-ventilated area, away from moisture and incompatible materials. The signal word is **Danger**, indicating high hazard potential. Molekula supplies Propyl chloroformate 98% from research to bulk quantities with full documentation and ISO 9001:2015 traceability.