Method 1640Mix A Back Catalog number: 52146 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10735.12-100-IO 2,2',3',4,5-Pentachlorobiphenyl Price on request 9074.9-K-IP 2-Chlorosyringealdehyde, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 76341-69-0 Price on request C14731500 Malonic acid-dimethyl ester, 250mg Price on request