Instrument Standard 2 Back Catalog number: 53078 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 79198 Toxaphene Price on request 53019 Verification II Standard 1 Price on request 9333.13-100-IO ß-Ionone, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 79-77-6 Price on request