WS Disinfection By-Products - Cal Check 1 Back Catalog number: 92894 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 12118.5-100-ME Dimetridazole,100 µg/mL,MeOH,1mL, Price on request C14289000 Indigotine, certified, 0.25g Price on request 71585 m-Cresol-PFB derivative Price on request