Chlorpyrifos Back Catalog number: 79508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2544.15-100-ME Dibenzosuberone, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 1210-35-1 Price on request 82535 EPA Method 8250 - Acid Matrix Spiking Solution Price on request 94041 1,3,5-Tribromobenzene Price on request