| Identification | Back Directory | [Name]
1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt | [CAS]
6388-25-6 | [Synonyms]
Direct Red 103
C.I.Direct Red 103:C.I.34025
1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt | [EINECS(EC#)]
613-392-9 | [Molecular Formula]
C32H20N9Na3O11S3 | [MOL File]
6388-25-6.mol | [Molecular Weight]
871.719 |
| Hazard Information | Back Directory | [Preparation]
2-Aminobenzene-1,4-disulfonic acid diazo, and Naphthalen-1-amine coupling, again diazo, and 8-Aminonaphthalene-2-sulfonic acid coupling, its product to diazo, and 4-Nitrobenzene-1,3-diamine coupling . | [Properties and Applications]
dark red blue light. Soluble in water into wine red to Claret, slightly soluble in alcohol. The strong sulfuric acid for blue or gray, red sauce after dilution. The dye solution to join strong hydrochloric acid have red light brown precipitation; With strong sodium hydroxide solution have orange brown precipitation
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Standard
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Acid Resistance
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Alkali Resistance
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Light Fastness
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Soaping
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Water
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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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3
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5
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4-5
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2
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2
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