Calibration Standard Set Back Catalog number: 52032 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 89235 Kaempferol, 20mg Price on request 2291.8-1G Terephthalic acid, neat, Solvent-neat, Unit 1g, # of units-1, Cas.no. 100-21-0 Price on request 677903 Edifenphos, 100 µg/ml, Acetonitrile, 1ml Price on request