(E)-4-(Dimethylamino)-2-butenoic acid hydrochloride848133-35-7100 % similar 4-(1-Piperidinyl)-2-(E)-butenoicacid hydrochloride197892-69-659 % similar trans-2-Pentenoic acid13991-37-248 % similar 2-Hexenoic acid1191-04-445 % similar trans-2-Hexenoic acid13419-69-745 % similar 4-Bromocrotonic acid13991-36-144 % similar Glutaconic acid1724-02-342 % similar Dimethylglycine hydrochloride2491-06-742 % similar trans-2-Octenoic acid1871-67-642 % similar Maleic acid110-16-741 % similar Fumaric acid110-17-841 % similar Poly(maleic acid)26099-09-241 % similar N1,N1,N4,N4-Tetramethyl-2-butene-1,4-diamine4559-79-941 % similar Dodec-2-enoic acid32466-54-941 % similar trans-2-Decenoic acid334-49-641 % similar 2-Nonenoic acid3760-11-041 % similar trans-2-Decenoic acid72881-27-741 % similar Crotonic acid107-93-740 % similar 3-Dimethylaminopropionic acid hydrochloride14788-12-640 % similar Crotonic acid3724-65-040 % similar