Sulphate (SO42-) Back Catalog number: 59104 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1843.13-100MG 4-n-Hexylbenzoic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 21643-490-6 Price on request 30176 EPA Method 515.2 - Analytes Price on request 683853 Sulfosulfuron, 100 µg/ml, Acetonitrile, 5ml Price on request