4-Ethylcatechol, 100 µg/ml, Methanol, 10ml

Custom nitrosamine-control mix 7 components, each 500µg/mL in acetonitrile 9666.4-K-AN N- Nitrosodiethanolamine 1116-54-7 NDELA 9004.2-2K-DC N-Nitrosodimethylamine 62-75-9 NDMA 9006.4-2K-DC N-Nitrosodiethylamie

1,2,3,4-Tetrachloro[13C12]dibenzofuran (97.5%), 1.2ml x 48.75ug/ml, toluene

1-Ethyl-2-phenylbenzimidazole, N-glucuronide, , Solvent-, Unit , # of units-, Cas.no.