Internal Standard Back Catalog number: 93185 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3407.26-100 tau-Fluvalinate, 100µg/mL, Solvent-c.hexane or ac.nitrile, Unit 1mL, # of units-1, Cas.no. 102851-06-9 Price on request 673427 Prosulfocarb, 100 µg/ml, Acetonitrile, 5ml Price on request 92264 Ethers & Thioethers Price on request