Custom Standard Back Catalog number: 50407 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1570.34-10MG Pseudomorphine (free base), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 125-24-6 Price on request S-4142-10-IO Low level Nitrogen Calibration Units: 1x1mL ampoules or 10mL screwcapped bottle Nitrogen introduced using Aniline Catalogue No. Concentration Matrix: isooctane mg/kg (ppm) S-4142-0 Blank S-4142-05 0.5 S-4142-1 Price on request 2728.3-25MG N,N-Dimethylguanidine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 6145-42-2 Price on request