Disopyramide

Disopyramide (CAS 3737-09-5) is a pharmaceutical compound also known by the development codes H 3292 and SC 7031, and the trade names Dicorantil and Searle 703. It belongs to the class of antiarrhythmic agents and is classified under pharmaceutical intermediates for industrial supply purposes.

Disopyramide functions primarily as a Class Ia antiarrhythmic agent, blocking fast sodium channels in cardiac tissue to slow conduction velocity and suppress abnormal electrical activity. It serves as a key active pharmaceutical ingredient (API) or reference standard in the synthesis and quality control of antiarrhythmic drug formulations, and is used in pharmacological research targeting cardiac rhythm disorders.

Disopyramide is supplied as a crystalline solid suitable for pharmaceutical manufacturing, with sourcing aligned to REACH compliance requirements applicable in the EU market. Procurement is available under HS code 2933.39.4100. Buyers should confirm grade specifications, certificate of analysis requirements, and packaging formats directly with the supplier.