## Abstract It is widely accepted that indigo dyes derived from __Murex trunculus__ were used to produce the biblical dyes __tekhelet__ and __argaman__. We describe a method of following the debromination of natural leucoindigos and their binding to wool using NMR spectroscopy. Debromination is obs
On the diazotype process of photographic dyeing and printing
- Publisher
- Wiley (John Wiley & Sons)
- Year
- 1890
- Weight
- 626 KB
- Volume
- 9
- Category
- Article
- ISSN
- 0368-4075
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β¦ Synopsis
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## Abstract The multiβstep synthesis of two benzimidazole trimethine cyanines as possible green sensitizing dyes (Gs3β1, Gs3β2) is reported. Compounds were characterized from UVβVis, mass spectroscopic and NMR data. The charge density distributions of the two compounds, calculated using the semiβem