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N-nitroso-N-methyloctadecylamine in Hair-Care Products

N-nitroso-N-methyloctadecylamine in Hair-Care Products

J B Morrison, S S Hecht, J A Wenninger

Food Chem Toxicol. 1983 Feb;21(1):69-73.

PMID: 6681794

Abstract:

Fifty-three cosmetic products containing one or more of the ingredients N,N-dimethyloctadecylamine oxide, N,N-dimethyloctadecylamine and N-benzyl-N,N-dimethyloctadecylammonium chloride were analysed for N-nitroso-N-methyloctadecylamine by gas chromatography with detection by a Thermal Energy Analyzer. [1-14C]N-Nitroso-N-methyloctadecylamine was used as an internal standard. Eight of 11 products containing N,N-dimethyloctadecylamine oxide and three of 38 products containing N-benzyl-N,N-dimethyloctadecylammonium chloride were found to contain N-nitroso-N-methyloctadecylamine at levels ranging from 28 to 969 ppb. In photolysis experiments, all of these products exhibited a loss of Thermal Energy Analyzer response for N-nitroso-N-methyloctadecylamine following irradiation by ultraviolet light. In two cases, the presence of N-nitroso-N-methyloctadecylamine was confirmed by combined gas chromatography-mass spectrometry.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP4088226-B	N-Methyldioctadecylamine		4088-22-6	Price

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