COD Calibration Standard Back Catalog number: 50255 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 11931.12-10MG N-Ethyl-N-(2-hydroxyethyl)perfluorooctylsulphonamide,neat,neat,10mg, Price on request 71641 Propyl sulfide Price on request 9400.19-10MG Doxepin hydrochloride Price on request