Perchlorate Level 1 Back Catalog number: 59339 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3995.9-K-CY 1,1,2-Trimethylcyclohexane, 1000µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-1, Cas.no. 7094-26-0 Price on request 73387 Chlorthiophos Price on request 0293.19-200-T 2-Methylchrysene, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 3351-32-4 Price on request