Chlorpyrifos methyl Back Catalog number: 70593 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 11156.7-50-ME Perfluoroheptane sulfonic acid, potassium salt,50 µg/mL,MeOH,1mL, Price on request S-4503-3K-25LW Phosphorous Standards Phosphorus in Light White Mineral Oil, 20Cst Tri-n-butylphosphate, 99+% (Chiron product nr. 1399.19) CAS [126-73-8] Matrix: Isooctane , 20cSt Units: 1x25mL, 1x100mL Isooctane Price on request 2517.8-K-ME Caffeine, 1000µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 58-08-2 Price on request