WP Low Level Perchlorate Back Catalog number: 55199 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2232.7-100-5AN Patulin, 100µg/mL, Solvent-acetonitrile, Unit 5mL, # of units-1, Cas.no. 149-29-1 Price on request B688565 3-Bromo-L-tyrosine, 1g Price on request MPN-74 1,2,3,4,5,6,8-Heptachloro(13C10)naphthalene, 1.2mL x 50ug/mL, nonane Price on request