525 Internal Standard Back Catalog number: 94212 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3476.21-100 Permethrin, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 52645-53-1 Price on request 9666.4-100MG N-Nitrosodiethanolamine, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 1116-54-7 Price on request 59038 High Spike 1 - ICP Price on request