Synonyms2-Butenal, 2-methyl- (9CI, ACI) Close 2-Butenal, 2-methyl- (9CI, ACI) Related products Tiglaldehyde M.F. M.W. 84.12 CAT# AR-T03248 CAS# 497-03-0 Tiglaldehyde (mixture of E/Z) M.F. M.W. 84.12 CAT# AR-T03812 CAS# 1115-11-3