QC Standard 2 Back Catalog number: 52085 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 678377 2,4'-DDD, 100 µg/ml, Acetonitrile, 5ml Price on request 79168 Heptachlor epoxide Price on request 11275.12-100-AN Promecarb-d3-(N-methoxy-d3),100 µg/mL,acetonitrile,1mL, Price on request