Interference Standard 4 Back Catalog number: 52041A Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 676304 Levamisole hydrochloride, 250mg Price on request 9864.17 Alprazolam-d5, , Solvent-, Unit , # of units-, Cas.no. 125229-61-0 Price on request 2910.16-100-ME Sodium p-n-decylbenzenesulfonate, 100µg/mL, Solvent-methanol, Unit 1mL, # of units-1, Cas.no. 2627-06-7 Price on request