| Identification | Back Directory | [Name]
COOMASSIE FAST BLACK G | [CAS]
10142-78-6 | [Synonyms]
C.I.26405
Acid Black 21
COOMASSIE FAST BLACK G
Acid black 21 (C.I. 26405)
C.I.Acid Black 21:C.I.26405
disodium 5-[[4-[(5-sulphonato-1-naphthyl)azo]-1-naphthyl]azo]-8-(p-tolylamino)naphthalene-1-sulphonate
disodium 5-[[4-[(5-sulphonato-1-naphthyl)azo]-1-naphthyl]azo]-8-(p-tolylamino)naphthalene-1-sulphonate
4-[(4-Methylphenyl)amino]-4'-[(5-sodiosulfo-1-naphthalenyl)azo][1,1'-azobisnaphthalene]-5-sulfonic acid sodium salt
disodium,8-(4-methylanilino)-5-[[4-[(5-sulfonatonaphthalen-1-yl)diazenyl]naphthalen-1-yl]diazenyl]naphthalene-1-sulfonate | [EINECS(EC#)]
233-404-2 | [Molecular Formula]
C37H25N5Na2O6S2 | [MDL Number]
MFCD00190667 | [MOL File]
10142-78-6.mol | [Molecular Weight]
745.73 |
| Hazard Information | Back Directory | [Preparation]
5-Aminonaphthalene-1-sulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-(P-toluidino)naphthalene-1-sulfonic acid coupling. | [Properties and Applications]
black. Soluble in water for dark purple, soluble in ethanol for red light blue. The strong sulfuric acid for blue-ray black, diluted green for blue-ray. The dye solution to join strong hydrochloric acid for turquoise blue; Add thick sodium hydroxide solution have sauce red precipitate. Suitable for the wool dyeing and printing, also suitable for leather shading.
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Standard
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Light Fastness
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Soaping
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Persperation Fastness
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Oxygen bleaching
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Fastness to seawater
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Fading
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Stain
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Fading
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Stain
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Fading
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Stain
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ISO
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6
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5
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4
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4-5
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4
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3-4
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4-5
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4-5
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