Multi-Element Calibration Standard-4 Back Catalog number: 50013 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9305. Dextropropoxyphene, , Solvent-, Unit , # of units-, Cas.no. Price on request 9242.7-100MG Salicylic acid-d4 (3,4,5,6-d4), neat, Solvent-neat, Unit 100mg, # of units-1, Cas.no. 7864-17-0 Price on request 96078 Difenzoquat Price on request