5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid

Product Name: 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
CAS No.: 87-03-6
Chemical Name: 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
Synonyms: RW acid;NSC 1698;I Acid Imide;Rhoduline acid;Acid bis-mediated;N,N-Bis(5-naphthol-7-sulfonic acid)amine;bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine;6,6'-Iminobis(1-hydroxynaphthalene-3-sulfonic acid);7,7'-Iminobis(4-hydroxy-2-naphthalenesulfonic acid);2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-
CBNumber: CB3855351
Molecular Formula: C20H15NO8S2
Formula Weight: 461.46
MOL File: 87-03-6.mol

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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Property

Boiling point:: 772.18℃[at 101 325 Pa]
Density: 1.734
vapor pressure: 0Pa at 25℃
pka: -0.14±0.40(Predicted)
Water Solubility: 36.1g/L
LogP: -1.83
EPA Substance Registry System: 2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy- (87-03-6)

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Hazard and Precautionary Statements (GHS)

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N-Bromosuccinimide Price

American Custom Chemicals Corporation

Product number: CHM0238067
Product name: 7,7'-IMINOBIS(4-HYDROXY-2-NAPHTHALENESULFONIC ACID)
Purity: 98.00%
Packaging: 5MG
Price: $503.98
Updated: 2021/12/16

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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Chemical Properties,Usage,Production

Chemical Properties

7,70 -Iminobis(4-hydroxynaphthalene-2-sulfonic acid) [87-03-6] J acid imide, di-J acid, is produced by heating the sodium salt of J acid in aqueous sodium bisulfite at 106℃ for 36 h (yield 89 %). It is used to produce C.I. Direct Reds 31 and 149, as well as C.I. Direct Violets 48, 66, and 102.

Flammability and Explosibility

Not classified

5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Preparation Products And Raw materials

Raw materials

J acid

Preparation Products

Direct Blend Blue Direct Red 23 Direct Red 31

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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Suppliers

China 26 Germany 1 India 3 Singapore 1 United Kingdom 2 United States 9 Global 42

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87-03-6, 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acidRelated Search:

Tri(propylene glycol) diacrylate Sodium risedronate Dehydrothio-p-toluidinedisulfonic acid BIS(2-HYDROXYETHYL) ETHER DILAURATE dipotassium 5-amino-4-hydroxybenzene-1,3-disulphonate Triethylene glycol diacrylate 1,3-PHENYLENEDIAMINE-4,6-DISULFONIC ACID 2-Amino-1,4-benzenedisulfonic acid 2,2-Dinaphthylamine 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid J acid 4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid 7-Anilino-4-hydroxy-2-naphthalenesulfonic acid N-(2-Naphthyl)aniline 2,2'-Benzidinedisulfonic acid Dilauryl thiodipropionate 2-Amino-4,8-naphthalenedisulfonic acid 7-Amino-1,3-naphthalenedisulfonic acid

7,7'-Iminobis(4-hydroxy-2-naphthalenesulfonic acid)

5,5'-dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid

4,4'-Dihydroxy-7,7'-iminodi(naphthalene-2-sulfonic acid)

Rhoduline acid

4,4'-dihydroxy-7,7'-iminodi(naphthalene-2-sulphonic acid)

N,N-Bis(5-naphthol-7-sulfonic acid)amine

6,6'-Iminobis(1-hydroxynaphthalene-3-sulfonic acid)

4-hydroxy-7-[(5-hydroxy-7-sulfo-2-naphthyl)amino]naphthalene-2-sulfonic acid

4-hydroxy-7-[(5-hydroxy-7-sulfo-naphthalen-2-yl)amino]naphthalene-2-sulfonic acid

4-hydroxy-7-[(5-hydroxy-7-sulfonaphthalen-2-yl)amino]naphthalene-2-sulfonic acid

bis(4-hydroxy-2-sulfonaphthalene-7-yl)amine

2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy-

I Acid Imide

NSC 1698

RW acid

5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic

Acid bis-mediated

87-03-6

NHC10H5OHSO3H2

C20H15NO8S2

Intermediates of Dyes and Pigments