Caffeine Back Catalog number: 95602 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11752.12-100-IO 2,3,3',4,5',6-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 72176 Glycine Price on request 2004.12-10MG 2,2',4,4',5,5'-Hexachlorobiphenyl, neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 35065-27-1 Price on request