2,3,3',4,4',5'-Hexachlorobiphenyl, 5mg Back Catalog number: C-157N Availability: In the manufacturer's stock Price on request - + Recommended 2900.27-10MG Cholest-5-en-3ß-ol , neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 57-88-5 Price on request 10405.4-50MG O,O-Diethylthiophosphate, potassium salt, 50mg Price on request 2125.12-10-IOX10 Arochlor 1221 , 10µg/mL, Solvent-isooctane, Unit 1mL, # of units-10, Cas.no. 11104-28-2 Price on request