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Mangalam Intermediates
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Product Name:4-Amino-1,7-naphthalenedisulfonic acid
CAS:85-74-5
Purity:99% Package:1 kg,5 kg, 10 kg,25kg and 1 MT
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| Company Name: |
Riedel-de Haen AG
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800 558-9160 |
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| Products Intro: |
Product Name:4-AMINO-1,7-NAPHTHALENEDISULFONIC ACID
CAS:85-74-5
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| | 4-aminonaphthalene-1,7-disulfonic acid Basic information |
| Product Name: | 4-aminonaphthalene-1,7-disulfonic acid | | Synonyms: | 4-aminonaphthalene-1,7-disulphonic acid;DAHLSACIDII;4-amino-1,7-naphthalenedisulfonic acid;4-azanylnaphthalene-1,7-disulfonic acid;1-naphthylamine-4,6-disulfonic acid;4-aminonaphthalene-1,7-disulfonic acid;1,7-Naphthalenedisulfonic acid, 4-amino- | | CAS: | 85-74-5 | | MF: | C10H9NO6S2 | | MW: | 303.31 | | EINECS: | 201-629-5 | | Product Categories: | | | Mol File: | 85-74-5.mol |  |
| | 4-aminonaphthalene-1,7-disulfonic acid Chemical Properties |
| RIDADR | 1759 | | HazardClass | 8 | | PackingGroup | III |
| | 4-aminonaphthalene-1,7-disulfonic acid Usage And Synthesis |
| Description | 1-Aminonaphthalene-4,6-disulfonic acid [85-74-5]. (4-aminonaphthalene-1,7-disulfonic acid), Dahl’s acid II, C10H9NO6S2, Mr 303.3, and its alkali-metal salts are soluble in water; the calcium salt is soluble in aqueous ethanol. Caustic fusion at 180℃ yields 1-amino-6-hydroxynaphthalene-4-sulfonic acid, but at higher temperature 4,7-dihydroxynaphthalene1-sulfonic acid is formed. Sulfonation with 35 % oleum at 80℃ gives 1-aminonaphthalene-2,4,6-trisulfonic acid. | | Preparation | Naphthionic acid is sulfonated with 25 % oleum at 20℃ to give a 70 : 30 mixture of 1,4,7- and 1,4,6-trisulfonic acids, which is used as mixed Dahl’s acids. |
| | 4-aminonaphthalene-1,7-disulfonic acid Preparation Products And Raw materials |
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