Source:http://linkedlifedata.com/resource/umls/id/C0002508
MSH: A group of compounds derived from ammonia by substituting organic radicals for the hydrogens. (From Grant & Hackh's Chemical Dictionary, 5th ed),CSP: group of compounds derived from ammonia by substituting organic radicals for the hydrogens.,NCI: A class of organic compounds that contain nitrogen as the pivotal atom for functional groups. There are several different types of amines and the class is extensive.