Sulfate (SO4-2) Back Catalog number: 50404 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 92575 EPA Method 8240B - Purgeable Internal Standard Price on request 79320 Endosulfan II Price on request 8734.8-1G 2,6-Dimethylolphenol, neat, Solvent-neat, Unit 1g, # of units-, Cas.no. 2937-59-9 Price on request