Caffeine, 1000µg/ml in MeOH, 1ml Back Catalog number: 71151 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 2168.12-50-IO 4'-Fluoro-2,2',3,3',4,5,5',6,6'-nonabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 876310-29-1 Price on request EPA-1613CSS Cleanup Standard Spiking Solution, 1.2ml, nonane Price on request 73473 bis(2-Dimethylaminoethyl)methylamine Price on request