ChemicalBook >> CAS DataBase List >>5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
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;Di-J acid|||I Acid Imide|||NSC 1698;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)
- CBNumber:
- CB3855351
- Molecular Formula:
- C20H15NO8S2
- Molecular Weight:
- 461.46
- MDL Number:
- MFCD00035713
- MOL File:
- 87-03-6.mol
Last updated:2025-04-17 18:22:24
| 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 |
| FDA UNII | EB8FE6GXT2 |
| EPA Substance Registry System | 2-Naphthalenesulfonic acid, 7,7'-iminobis[4-hydroxy- (87-03-6) |
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid Chemical Properties,Uses,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.
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
Raw materials
Preparation Products
Direct Blend Blue
Direct Red 23
Direct Red 31
tetrasodium 5,5'-[iminobis[(1-hydroxy-3-sulphonato-6,2-naphthylene)azo(2,5-dimethoxy-4,1-phenylene)azo]]bis(salicylate)
Direct Blue 163
DIRECT RED 31
DIRECT RED 149
DIRECT VIOLET 66
C.I. Direct Blue 185
tetrasodium 5,5'-[iminobis[(1-hydroxy-3-sulphonato-6,2-naphthylene)azo(5-methoxy-2-methyl-4,1-phenylene)azo]]bis(salicylate)
C.I. Direct Blue 184
DIRECT VIOLET 14
C.I. Direct Violet 49
disodium [mu-[[7,7'-iminobis[4-hydroxy-3-[[2-hydroxy-5-(N-methylsulphamoyl)phenyl]azo]naphthalene-2-sulphonato]](6-)]]dicuprate(2-)
[1,1'-Biphenyl]-3,3'-disulfonic acid, 4,4'-bis[[1-hydroxy-6-[(5-hydroxy-7-sulfo-2-naphthalenyl)amino]-3-sulfo-2-naphthalenyl]azo]-, hexasodium salt
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Global( 50)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Hubei Jusheng Technology Co.,Ltd. | 18871490254 | linda@hubeijusheng.com | CHINA | 28172 | 58 |
| TargetMol Chemicals Inc. | +1-781-999-5354 +1-00000000000 | marketing@targetmol.com | United States | 32159 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
| Dayang Chem (Hangzhou) Co.,Ltd. | +86-0571-88938639 +8617705817739 | info@dycnchem.com | China | 52849 | 58 |
| Hebei Chuanghai Biotechnology Co., Ltd | +8615531151365 | mina@chuanghaibio.com | China | 18137 | 58 |
| PT CHEM GROUP LIMITED | +86-85511178; +86-85511178; | peter68@ptchemgroup.com | China | 35425 | 58 |
| SUZHOU SENFEIDA CHEMICAL CO.,LTD | +86-0512-83500002 +8618501500038 | 3899766280@qq.com | China | 26362 | 58 |
| Wuhan Fortuna Chemical Co.,Ltd | +8618007136271 | hk@fortunachem.com | China | 5992 | 58 |
| XIAMEN AMITY INDUSTRY AND TRADE CO., LTD. | +8618950047208 | ellena@amitychem.com | China | 43416 | 58 |
| Meryer (Shanghai) Chemical Technology Co., Ltd. | 021-61259108 18621169109 | market03@meryer.com | China | 40228 | 62 |
View Lastest Price from 5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2024-11-21 | Rhoduline Acid
87-03-6
|
US $195.00 / mg | 98.54% | 10g | TargetMol Chemicals Inc. |
-
- Rhoduline Acid
87-03-6
- US $195.00 / mg
- 98.54%
- TargetMol Chemicals Inc.
87-03-6(5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid)Related Search:
J acid
4-Hydroxy-7-methylamino-2-naphthalenesulfonic acid
7-Anilino-4-hydroxy-2-naphthalenesulfonic acid
N-(2-Naphthyl)aniline
5,5'-Dihydroxy-2,2'-dinaphthylamine-7,7'-disulphonic acid
2,2-Dinaphthylamine
2-Amino-1,4-benzenedisulfonic acid
Triethylene glycol diacrylate
dipotassium 5-amino-4-hydroxybenzene-1,3-disulphonate
BIS(2-HYDROXYETHYL) ETHER DILAURATE
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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
Di-J acid|||I Acid Imide|||NSC 1698
87-03-6
NHC10H5OHSO3H2
C20H15NO8S2
Intermediates of Dyes and Pigments