PCB No. 21, 100µg/ml in Isooctane, 1ml Back Catalog number: 66021 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 32221 1,2-Dichloroethane Price on request 3377.4-100-AN Dichlorvos, 100µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 62-73-7 Price on request 2079.6-K-IP 2,4-Dinitrophenol, stabilized with min. 30% water, 1000µg/mL, Solvent-isopropanol, Unit 1mL, # of units-1, Cas.no. 51-28-5 Price on request