Caffeine Back Catalog number: 95602 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended D4911 trans-4'-(3,4-Difluorophenyl)bicyclohexyl-4-one, >98%, 1g Price on request EO-5278 Method 1614 Native PAR Stock Solution, in Nonane, 1,2ml Price on request 682835 3-Hydroxynaphthalene-2,7-disulfonic acid disodium Price on request