Isovaleraldehyde-DNPH, 100µg/ml in Acetonitrile, 1ml

2,6-Dimethylbenzothiophene, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 66142-67-4

2,3’,4,5’,6-Pentachlorobiphenyl

3,3'-Dimethoxybenzidine,100 µg/mL,acetonitrile,1mL,