13560-49-1 2-Butenoic acid, 3-amino-, thiodi-2,1-ethanediyl ester 3-Thia-1,5-pentanediol bis(beta-aminocrotonate) Advastab A 70 Crotonic acid, 3-amino-, thiodiethylene ester EINECS 236-946-8 Ethanol, 2,2'-thiodi-, bis(3-aminocrotonate) Thiodiethane-1,2-diyl bis(3-aminobut-2-enoate) Thiodiethylene beta-aminocrotonate Thiodiethylene glycol bis(beta-aminocrotonate)