4-Hydroxybenzoic acid, 1000µg/mL in MeOH, 1ml Back Catalog number: 2514.7-K-ME Manufacturer: CHIRON AS Availability: 3 weeks Price on request - + Recommended 1688.0-2K-T Hydrogensulfide, 2000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 7783-06-4 Price on request 1895.18-K-IO Hydrindantin (reduced form of ninhydrin), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 5103-42-4 Price on request 675017 Acetate Mix suitable for 2007.01 per AOAC Price on request