Surrogate Standard Back Catalog number: 98607 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended M-502-10X-SET 59liquid & gas components,2.0mg/mL in MeOH,59x1mL Price on request 92703 Surrogate Standard Price on request 9290.16-100-MEX5 Tramadol-d6 hydrochloride, 100µg base/mL, Solvent-methanol, Unit 1mL, # of units-5, Cas.no. Price on request