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- Q7243701 subject Q6865951.
- Q7243701 subject Q8297737.
- Q7243701 subject Q8852192.
- Q7243701 subject Q8984839.
- Q7243701 abstract "Primuline is a dye containing the benzothiazole ring system. Primuline itself is also known as Direct yellow 7, Carnotine, or C.I. 49010.The primulines are considered derivatives of dehydrothiotoluidine (aminobenzenyltoluylmercaptan), which is obtained when para-toluidine is heated with sulfur for eighteen hours at 180-190 °C and then for a further six hours at 200-220 °CDehydrothiotoluidine is not itself a dye-stuff, but if the heating is carried out at a higher temperature in the presence of more sulfur, then a base is formed, which gives primuline yellow upon sulfonation.Primuline yellow is a mixture of sodium salts and probably contains at least three thiazole rings in combination. It is a substantive cotton dye of rather fugitive shade, but can be diazotized on the fibre and then developed with other components, yielding a series of ingrain colors.Primuline is usually available as a sodium salt. Primuline is fluorescent.Thioflavin T is obtained by the methylation of dehydrothiotoluidine with methanol in the presence of hydrochloric acid. Thioflavin S results from the methylation of dehydrothiotoluidine with sulfonic acid. This sulfonic acid on oxidation with bleaching powder or with lead peroxide, in alkaline solution yields chloramine yellow, which dyes cotton a beautiful yellow.".
- Q7243701 thumbnail Primuline.svg?width=300.
- Q7243701 wikiPageWikiLink Q11457.
- Q7243701 wikiPageWikiLink Q14982.
- Q7243701 wikiPageWikiLink Q189720.
- Q7243701 wikiPageWikiLink Q191807.
- Q7243701 wikiPageWikiLink Q2033625.
- Q7243701 wikiPageWikiLink Q2409.
- Q7243701 wikiPageWikiLink Q250437.
- Q7243701 wikiPageWikiLink Q312373.
- Q7243701 wikiPageWikiLink Q410749.
- Q7243701 wikiPageWikiLink Q419096.
- Q7243701 wikiPageWikiLink Q424424.
- Q7243701 wikiPageWikiLink Q518328.
- Q7243701 wikiPageWikiLink Q682.
- Q7243701 wikiPageWikiLink Q6865951.
- Q7243701 wikiPageWikiLink Q82682.
- Q7243701 wikiPageWikiLink Q8297737.
- Q7243701 wikiPageWikiLink Q8852192.
- Q7243701 wikiPageWikiLink Q8984839.
- Q7243701 type ChemicalCompound.
- Q7243701 type ChemicalSubstance.
- Q7243701 type ChemicalObject.
- Q7243701 type Thing.
- Q7243701 type Q11173.
- Q7243701 comment "Primuline is a dye containing the benzothiazole ring system. Primuline itself is also known as Direct yellow 7, Carnotine, or C.I.".
- Q7243701 label "Primuline".
- Q7243701 depiction Primuline.svg.