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 79200 Tetrahydrofuran Price on request 1438.12-1G 4-Cyclohexylphenol, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 1131-60-8 Price on request 98181 2,3,5,6-Tetrachloroterephthalic acid Price on request