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 DF-IS-I Mass-Labelled PCDF Internal Standard Solution, 1.2ml, nonane Price on request 3616.10-K-IO L-(-)-Fenchone, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 7787-20-4 Price on request 59492 Common Anions Mix Price on request