Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended S-4381-K-ME ISO 17353/23161 Internal Standard OC, Stock Solution B 4 Analytes, each 1000µg/mL OC in methanol; units: 5x1mL, 5x5mL Prod.No. Compound CAS No. Weight OCT 2496.14 Di-n-heptyltin dichloride [7434 Price on request 1089.22-200-T Benzo[ghi]perylene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 93951-66-7 Price on request 94979 PCB Congener Mix #1 Price on request