trans-1,3-Dichloro-1-propene

N-(4-chlorophenyl)-N'-(3,4-dichlorophenyl)urea , 1.2ml x 50ug/ml, methanol

Sulfur Calibration Mixtures: Di-n-butyl sulfide in Light White Oil (less than 20mg/kg S) Unit : 10mL screw-capped bottle Light White Mineral Oil Heavy White Mineral Oil (20 cSt at 40°C) (70 cSt at 40°C)

Custom mix of nitrosamines 9329.14-K-AN N-Nitrosodibenzylamine NDBzA 10038.18-100-AN N-Nitroso-N,N-di-(7-methyloctyl)amine NDiNA 2743.12-K-IP N-Nitroso-di-n-hexylamine NDHA 9330.8-K-AN N-Nitrosodiisobutylamine NDiBA 9331.16-K-AN N-Nitrosodi-n-octy