Semi-Volatile Standard Back Catalog number: 92997 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 2540.7-25MG Paraxanthine, neat, Solvent-neat, Unit 25mg, # of units-1, Cas.no. 611-59-6 Price on request 9195.22-10MG Sildenafil-d3 (N-methyl-d3-piperazine), neat, Solvent-neat, Unit 10mg, # of units-1, Cas.no. 1126745-90-1 Price on request MBP-11 3,3'-Dichloro[13C12]biphenyl, 1.2ml x 50ug/ml, nonane Price on request