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Extraction of mercaptobenzothiazole compounds from rubber products

På svenska

Author

Summary, in English

At evaluation of contact dermatitis caused by solid material, patch testing is usually performed with the material as such and with extracts of it. In this study, optimization of the extraction technique monitored by quantitative HPLC analysis of the extracted haptens is described for mercaptobenzothiazole derivatives. Several solvents with different properties are included. Acetone has traditionally been a solvent widely used for the extraction of organic haptens from solid products. However, acetone and other ketones are not inert solvents. The rubber accelerators 2-(4-morpholinyl mercapto) benzothiazole (MMBT) and N-cyclohexyl-2-benzothiazyl sulfenamide (CBS) react with acetone, yielding 2 new compounds, which were isolated and characterised by NMR and MS. For the extraction of solid rubber products, methyl tert-butyl ether (MTBE) was found to be a more suitable solvent which is unreactive to most common haptens.

Publishing year

1997

Language

English

Pages

195-200

Publication/Series

Contact Dermatitis

Volume

36

Issue

4

Document type

Journal article

Publisher

Wiley-Blackwell

Topic

  • Dermatology and Venereal Diseases

Keywords

  • hapten
  • extraction
  • patch testing technique
  • rubber
  • mercaptobenzothiazole
  • allergic contact dermatitis
  • acetone
  • tetrahydrofuran
  • methyl tert-butyl ether

Status

Published

ISBN/ISSN/Other

  • ISSN: 0105-1873