Caffeine Back Catalog number: 98416 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2146.8-50-ME 1H,1H,8H-Perfluorooctane-1-ol, 50µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 10331-08-5 Price on request 9018.7-K-AN N-Nitrosomethylphenylamine, 1000µg/mL, Solvent-acetonitrile, Unit 1mL, # of units-1, Cas.no. 614-00-6 Price on request S-4244-100-ME EPA 1653 Chloroguaiacols 8 Analytes, each 100µg/mL in methanol; unit: 1x1mL 4-Chloroguaiacol [16766-30-6] 3,4-Dichloroguaiacol 4,5-Dichloroguaiacol 4,6-Dichloroguaiacol 3,4,5-Trichloroguaiacol 3,4,6-Trichloroguaiacol 4,5,6-Trichloroguaiacol Tetrach Price on request