4,4’-Butylidenebis(6-tert-butyl-m-cresol) Back Catalog number: 93223 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2517.8-100MG Caffeine,neat,neat,100mg, Price on request 1993.10-50-IO 1-Chloronaphthalene, 50µg/mL, Solvent-Isooctane, Unit 1mL, # of units-1, Cas.no. 90-13-1 Price on request C15970100 Pentachlorophenol 13C6, certified, 10mg Price on request