Calibration Standard Mix 4 Back Catalog number: 52036 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 9752.26-K-IO Hexacosanoic acid (Cerolic acid), 1000µg/mL, Solvent-isooctane, Unit 1mL, # of units-1, Cas.no. Price on request 679809 Sulfadimethoxine, 100 µg/ml, Methanol, 1ml Price on request C16996500 Sulfamethazine, 250mg Price on request