4-((4-Ethylphenyl)aMino)-4-oxobut-2-enoic acid
CAS No. 324067-34-7
4-((4-Ethylphenyl)aMino)-4-oxobut-2-enoic acid
QUINOASAPONIN 4 191480-32-7
MR-2264 148708-26-3