Calibration Standard Kit Back Catalog number: 52089 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2728.3-25MG N,N-Dimethylguanidine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 6145-42-2 Price on request 72289 p-Xylene-d10 Price on request 673995 Nitrofen, 10.0 µg/ml, Acetonitrile, 10ml Price on request