Ammonia as (NH4+) Back Catalog number: 59979 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11194.26-K-IO Diisononyl phthalate (C9-alkyl ester isomer mix),1000 µg/mL,isooctane,1mL, Price on request 11633.20-50MG Cefuroxime axetil,neat,neat,50mg, Price on request 3276.20-K-IO Methyl 10-cis-nonadecenoate , 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. 19788-74-0 Price on request