Chlorpyrifos-D10, 100µg/mL in Acetone, 1ml Back Catalog number: XA11600100AC Availability: In the manufacturer's stock Price on request - + Recommended 9019.4-100-AN 1,4-Dinitrosopiperazine, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 140-79-4 Price on request 19794 EPA Method 524 & 624 - Internal Standard Price on request 97505 Carbonyl DNPH Derivatives Price on request