GPC Calibration Standard Back Catalog number: 90877 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended F-7009-100MG 3,4-Diaminobiphenyl 2HCl, neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 471238-97-8 Price on request 58116 Sulfur (S) Price on request 52250A Method 200.7 Single Element Kit Price on request