WS Disinfection By-Products - Cal Check Back Catalog number: 91837 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended C15081000 2-Methoxy-5-methylaniline, certified, 0.25g Price on request 56004 Beryllium (Be) Price on request CLM-7531-1.2 Endosulfan sulfate (13C9), 100µg/mL in Nonane, 1,2 Price on request