L-Cystine Back Catalog number: 72923 Manufacturer: ABSOLUTE STANDARDS Availability: In the manufacturer's stock Price on request - + Recommended 70968 n-Tetradecane Price on request 51145 WA EPH Matrix Spike Mix Price on request 722393 PAH standard for liquid chromatography 16 PAH acc. to. EPA Method 610 in acetonitrile pack of 1mL 95,20 €