Diisopromine or disoprominum, usually as the hydrochloride salt, is a synthetic spasmolytic which neutralizes spastic conditions of the biliary tract and of the sphincter of Oddi. It was discovered at Janssen Pharmaceutica in 1955. It is sold in South Africa under the brand name Agofell syrup as a mixture with sorbitol, and elsewhere as Megabyl.

CAS：5966-41-6
中文别名：
英文别名：Megabyl;R 253;Diisopropyl-(3,3-diphenylpropyl)-amin;Dispromine;Diisoprominum;disopromine;Diisopromin;N,N-diisopropyl-3,3-diphenylpropan-1-amine;N-(3,3-diphenylpropyl)diisopropylamine;Disoprominum;N,N-diisopropyl-3,3-diphenylpropylamine;Do-Bil;Diisopromina;DIISOPROMINE;
分子式：C21H29N
分子量：295.462
精确质量：295.23
Psa：3.24
Logp：5.3274

UNII：2825S6AW9U

密度：0.954g/cm3
沸点：391.7ºC at 760 mmHg
闪点：170.8ºC
折射率：1.534