Caffeine, 1000µg/ml in MeOH, 1ml Back Catalog number: 71151 Manufacturer: ABSOLUTE STANDARDS Availability: 3 weeks Price on request - + Recommended 2141.6-100K-RF tert-Butyl ethyl ether + blank RFA, 10Wt%, Solvent-neat, Unit 10mL, # of units-2+1, Cas.no. 637-92-3 Price on request 1970.12-50-IO 2,2',3,4,4',5-Hexabromodiphenyl ether, 50µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 182677-30-1 Price on request 79603 Diuron Price on request