Quality Control Standard, 1000µg/ml in AC, 1ml Back Catalog number: ISO/DIS9377-4-1 Availability: In the manufacturer's stock Price on request - + Recommended 681952 Heptenophos, 10.0 µg/ml, Acetone, 10ml Price on request 0378.12-K-T Carbazole, 1000µg/mL, Solvent-toluene, Unit 1mL, # of units-1, Cas.no. 86-74-8 Price on request 3446.16-100-AN o,p'-Methoxychlor Price on request