Abstract
Mauveine chromophores and a family of phenosafranins have been extracted from the Colour Experience Museum black precipitate with boiling ethanol and separated by chromatography. Phenosafranin (287.1295), monomethylphenylsafranin (301.1452) and a dimethylphenosafranin (315.1609) were observed. Tentative evidence for small quantities of N-tert-butylmauveine A and N-tert-butylmauveine B has been found by comparison of the data to standard retention times and accurate mass data. A synthetic method which reproduces the composition of mauveine extracted from the black precipitate, which is rich in mauveine A, is described.
Original language | English |
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Pages (from-to) | 367-379 |
Number of pages | 13 |
Journal | Journal of Chemical Research |
Volume | 43 |
Issue number | 9-10 |
Early online date | 7 Aug 2019 |
DOIs | |
Publication status | Published - 1 Sept 2019 |
Bibliographical note
AcknowledgementWe are grateful to the Bradford Colour Experience Museum for black precipitate and to the EPSRC National Mass Spectrometry Foundation (NMSF) for mass spectra.
Keywords
- mauveine
- mauve
- N-tert-butylmauveine
- phenosafranin
- Colour Experience Museum