Chlorpyrifos Back Catalog number: 79508 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended S-4512-100-5T Perdeuterated Internal Standard-All-in-one 15 EU Priority PAHs Price on request 678153 Thionazin, 100 µg/ml, Acetonitrile, 1ml Price on request 679136 Metolachlor deschloro, 100 µg/ml, Acetonitrile, Price on request