WS Disinfection By-Products - Cal Check 4 Back Catalog number: 93986 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 681044 Dichlorprop-methyl ester, 100mg Price on request 79286 d-BHC Price on request LA20033200AC PCB-Mix 32, 10µg/ml in Acetone, 1ml Price on request