Isoprothiolane, 10 µg/ml, Acetonitrile, 10ml

C21 Ring-C Monoaromatic sterane (5ß(H),10ß(CH3)/5 alpha(H),10ß(CH3)), 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 98774-61-9 / 98774-59-5

2,2’,3,4,4’,5’-Hexachlorobiphenyl (138)

N-Nitrosopiperazine, 100mg