Ammonium bicarbonate as (NH4+) Back Catalog number: 50830 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 1139.19-K-IO n-Nonadecane, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 629-92-5 Price on request 0609.29-100-IO alpha alpha alpha (20R,24R)-24-Ethylcholestane, 100µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 62446-14-4 Price on request 71245 1-Bromo-2-chloroethane Price on request