PCB No. 157, 10µg/ml in Isooctane, 10ml Back Catalog number: L20015700IO 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 2333.12-K-HX 1-tert-Butyl-4-ethylbenzene, 1000µg/mL, Solvent-hexane, Unit 1mL, # of units-1, Cas.no. 7364-19-4 Price on request 1726.15-K-IO 1-Methoxyphenanthrene, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 834-99-1 Price on request