Control Standard for ICP-MS Back Catalog number: 50249 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70398 Isosafrole Price on request 2540.7-50MG Paraxanthine, neat, Solvent-neat, Unit 50mg, # of units-1, Cas.no. 611-59-6 Price on request 1848.12-100MG 2,6-Naphthalenedicarboxylic acid, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1141-38-4 Price on request