COD Calibration Standard Back Catalog number: 50434 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11749.12-100-IO 2,2',4,4',5,6'-Hexachlorobiphenyl ,100 µg/mL,isooctane,1mL, Price on request 680688 Dulcin, 10mg Price on request H825305 rac 4-Hydroxy Ephedrine Hydrochloride, 10mg Price on request