Caffeine Back Catalog number: 95602 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 10030 CLP Semi-Volatile Calibration Mix #4 Price on request 678274 Chlorfenapyr, 100 µg/ml, Acetonitrile, 1ml Price on request 1024.18-200-TX5 Chrysene-d12, 200µg/mL, Solvent-toluene, Unit 1mL, # of units-5, Cas.no. 1719-03-5 Price on request