4-Chlorocinnamic acid(2E)-3-(4-Chlorophenyl)prop-2-enoic acidtrans-4-Chlorocinnamic acid 98%(2E)-3-(4-Chlorophenyl)acrylic acidP-CHLOROCINNAMIC ACIDtrans-3-(4-Chlorophenyl)propenoic acid对氯肉桂酸4-氯肉桂酸4-Chlorocinnamic acidNSC 52172trans-4-Chlorocinnamic Acid(2E)-3-(4-Chlorophenyl)-2-propenoic Acid4-氯肉桂酸,主体成分为反式3-(4-Chlorophenyl)acrylic acid4-Chlorocinnamic acid, predominantly trans