p-Coumaric acid ethyl ester, >98%, 20mg

Methabenzthiazuron, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 18691-97-9

2,3,5,6-Tetrachloroterephthalic acid

PCB No. 180, 10µg/mL in Isooctane, 10ml