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primuline
Sign in to saveAlso known as NSC143368, C.I. Direct Yellow 59, monosodium salt, NSC 143368, Sodium 2'-(4-aminophenyl)-6-methyl(2,6'-bibenzothiazole)-7-sulphonate, C.I. 49000, direct yellow 59, Carnotine
Primuline is a dye containing the benzothiazole ring system. Primuline itself is also known as Direct yellow 59 or C.I. 49000.
Chemical data
- Formula
- C21H14N3NaO3S3
- Molecular weight
- 475.5 g/mol
- IUPAC name
- sodium 2-[2-(4-aminophenyl)-1,3-benzothiazol-6-yl]-6-methyl-1,3-benzothiazole-7-sulfonate
via PubChem
Wikidata facts
- Subclass of
- chemical compound
- Mass
- 475.009
Show 4 more facts
- chemical formula
- C₂₁H₁₄N₃NaO₃S₃
- canonical SMILES
- CC1=C(C2=C(C=C1)N=C(S2)C3=CC4=C(C=C3)N=C(S4)C5=CC=C(C=C5)N)S(=O)(=O)[O-].[Na+]
- Commons category
- Primuline
- described by source
- Encyclopædia Britannica 11th edition
Sources (1)
via Wikidata · CC0
~1 min read
Encyclopedic overview
2 sectionsContents
- See also
- References
Primuline is a dye containing the benzothiazole ring system. Primuline itself is also known as Direct yellow 59 or C.I. 49000.
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 °C Dehydrothiotoluidine 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.
Excerpted from Wikipedia’s “primuline” article, available under the CC BY-SA 4.0 licence.