Calibration Standard Kit Back Catalog number: 52090 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended CA10931780 Butyric acid-methyl ester, 1ml Price on request 91983 IS Mix 01 - Sequoia Price on request 1579.4-10G Metformin hydrochloride, neat, Solvent-neat, Unit 10g, # of units-1, Cas.no. 1115-70-4 Price on request