Internal Standard Back Catalog number: 92467 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3567.22-10MG 5,7,12,14-Pentacenetetrone, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 23912-79-0 Price on request 673225 Carbofuran, 100 µg/ml, Acetonitrile, 5ml Price on request 71920 4,4'-Butylidenebis(6-tert-butyl-m-cresol) Price on request