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 673530 4,4'-DDD, 100 µg/ml, Ethyl acetate, 5ml Price on request 683815 Isothiazolone, 50mg Price on request 93677 n-Eicosane Price on request