4-OH-Pyriproxyfen (4'-OH-pyr), 100 µg/ml, Acetoni

gamma-HCH D6, 100µg/mL in Cyclohexane, 1ml

S-4393-1 B[a]P/HCB Calibration Standard 2 (solvent : n- Nonane) Product S-4393-1 S-4393-2 S-4393-3 S-4393-4 S-4393-5 1356,6 Hexachlorobenzene 0,01 µg/mL 0,05 0,1

4'-Aminoazobenzene-4-sulphonic acid, 1g