WS Disinfection By-Products - Cal Check 4 Back Catalog number: 93986 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 675959 1-(3,4-Dichlorophenyl)urea, 10 µg/ml, Acetonitril Price on request 92662 Pesticide Mix #2 Price on request MET-11013B-10MG Acetochlor OA, 10mg Price on request