2,3,3',4,4',5,5'-Heptachlorobiphenyl, 5mg Back Catalog number: C-189N Availability: In the manufacturer's stock Price on request - + Recommended 11156.7-50-ME Perfluoroheptane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL, Price on request C-113N 2,3,3',5',6-Pentachlorobiphenyl, 5mg Price on request 680266 Trichlorfon, 10 µg/ml, Cyclohexane, 10ml Price on request