Internal Standard Back Catalog number: 96651 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2673.7-5MG Pentabromotoluene, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 87-83-2 Price on request 681299 Zearalanone, 10.0 µg/ml, Acetonitrile, 1ml Price on request 0212.18-10MG Chrysene, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 218-01-9 Price on request