Chlorpyrifos, 1000µg/ml in Hexane 1ml Back Catalog number: 81403 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended XA11440300ME 4-Chloro-3-methylphenol, 100µg/ml in MeOH, 1ml Price on request 95483 Volatile Standard Price on request 59053 Cal Std 2 - 10X Price on request