Ammonia as N Back Catalog number: 54213 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended LA11457536CY Chloroparaffin C12 65.08% Cl, 10μg/mL in CY, 1ml Price on request 9168.23-5MG Pholcodine-N,N'-dioxide, neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. Price on request 9129.6-K-IO Monophenyltin-d5 trichloride, 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Unlabelled 1124-19-2 Price on request