Detector Performance Standard Back Catalog number: 91435 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9398.20-5MG (+/-)-Citalopram-d4 hydrobromide (4-fluorophenyl-d4), neat, Solvent-neat, Unit 5mg, # of units-1, Cas.no. 1219803-58-3 Price on request H975710 5-Hydroxy L-Tryptophan, 250mg Price on request 2545.14-100-ME (±)-Atenolol,100 µg/mL,MeOH,1mL, Price on request