Caffeine Back Catalog number: 79397 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10947.2-25MG 1,1,1-Trichloroethane-d3,neat,neat,25mg Price on request MBP-202 2,2',3,3',5,5',6,6'-Octachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 1499.13-K-IO 4-Methyldodecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 6117-97-1 Price on request