WS Disinfection By-Products - Cal Check 4 Back Catalog number: 93986 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 679887 o-Dianisidine, 100 µg/ml, Acetonitrile, 1ml Price on request 78007 2,3,5,6-Tetrachloroterephthalic acid Price on request 673201 Anilazine, 100 µg/ml, Acetonitrile, 5ml Price on request