Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 3594.55-1MG Chlorophyll B, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 519-62-0 Price on request 677598 1,4-Dimethylnaphthalene, 10 µg/ml, Cyclohexane, Price on request 51039 MA - EPH Fractionation Surrogate Spike Price on request