WS Disinfection By-Products - Cal Check Back Catalog number: 91837 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70340 Carbofuran Price on request 675169 3,5-Dichlorophenol, 100 µg/ml, Methanol, 5ml Price on request 18000-2529-100ME5 Guanylurea-HCl, 100µg/ml in MeOH, 5ml Price on request