PCB No. 121, 1000μg/ml in Isooctane, 1ml Back Catalog number: 63121 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676811 Semicarbazide hydrochloride, 100mg Price on request 70198 Hexachlorocyclopentadiene Price on request 8109.18-250MG 4-Dodecylphenol, mixture of isomers, neat, Solvent-neat, Unit 250mg, # of units-1, Cas.no. 210555-94-5 Price on request