5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Basic information
- Product Name:
- 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
- Synonyms:
-
- 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
- CAS:
- 87-03-6
- MF:
- C20H15NO8S2
- MW:
- 461.46
- EINECS:
- 201-719-4
- Product Categories:
-
- Intermediates of Dyes and Pigments
- Mol File:
- 87-03-6.mol
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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Chemical Properties
- 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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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Usage And Synthesis
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.
Uses
Rhoduline acid is an acidic compound that can be used for the synthesis of azo dyes[1].
Flammability and Explosibility
Not classified
References
[1] Shirasaki et al, Bisazo compounds and their use for dyeing fibers, German, DE3403326A1, 1984-08-09.
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Preparation Products And Raw materials
Preparation Products
Raw materials
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acidSupplier
Meryer (Shanghai) Chemical Technology Co., Ltd.
- Tel
- 4006356688 18621169109
- market03@meryer.com
Shanghai Hanhong Scientific Co.,Ltd.
- Tel
- 021-54306202 13764082696
- info@hanhongsci.com
Hangzhou Yuhao Chemical Technology Co., Ltd
- Tel
- 0571-82693216
- info@yuhaochemical.com
Xiangshui Henryda Tech Chemical Co., Ltd.
- Tel
- 0512-63863327 13771648447
- sales@henryda-chem.com
Shanghai EFE Biological Technology Co., Ltd.
- Tel
- 021-65675885 18964387627
- info@efebio.com
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5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid(87-03-6)Related Product Information
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