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 50026 Anions Mix Price on request 8589.8-5ML 3-Octanol, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 589-98-0 Price on request 1647.7-5ML Pentafluorobenzoyl chloride, neat, Solvent-neat, Unit 5mL, # of units-1, Cas.no. 2251-50-5 Price on request