Caffeine Back Catalog number: 95602 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2272.4-2K-ME Ethyl ether, 2000µg/mL, Solvent-Methanol, Unit 1mL, # of units-1, Cas.no. 60-29-7 Price on request 70010 Ametryn Price on request 0452.3-150-CYX10 GC-IRMS Standards (C15 (?13C: -30.22); C20 (?13C: -33.06); C25 (?13C: -28.21)), 150µg/mL, Solvent-cyclohexane, Unit 1mL, # of units-10, Cas.no. Price on request