Ammonia as N Back Catalog number: 59479 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 0230.32-1MG Naphtho[2,3-a]coronene, neat, Solvent-neat, Unit 1mg, # of units-1, Cas.no. 190-74-9 Price on request MBP-188 2,2',3,4',5,6,6'-Heptachloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request 1937.0-1MLX10 Boron trifluoride, 12% in methanol, neat, Solvent-neat, Unit 1mL, # of units-10, Cas.no. 373-57-9 Price on request