ChemicalBook > Product Catalog >Organic Chemistry >Carboxylic acids and derivatives >Carboxylic acid derivatives >2-Amino-1,4-benzenedisulfonic acid
2-Amino-1,4-benzenedisulfonic acid
- CAS No.
- 98-44-2
- Chemical Name:
- 2-Amino-1,4-benzenedisulfonic acid
- Synonyms
- ANILINE-2,5-DISULFONIC ACID;JACS-98-44-2;ANILINE 2,5 DSA;2,5-DISULFOANILINE;2-Amino-1,4-benzened;4-SULFOMETANILIC ACID;ANILINEDISULFONIC ACID;2,5-Disulfoaniline,98%;2,5-Disulfoaniline,95%;4-benzenedisulfonic acid
- CBNumber:
- CB3257801
- Molecular Formula:
- C6H7NO6S2
- Molecular Weight:
- 253.25
- MOL File:
- 98-44-2.mol
- MSDS File:
- SDS
- Modify Date:
- 2023/7/27 13:57:03
| Melting point | >300°C |
|---|---|
| Boiling point | 497.5℃[at 101 325 Pa] |
| Density | 1.569 (estimate) |
| refractive index | 1.5500 (estimate) |
| storage temp. | Keep in dark place,Inert atmosphere,Room temperature |
| solubility | Aqueous Acid (Slightly), Water (Slightly) |
| form | Solid |
| pka | -1.15±0.50(Predicted) |
| color | White to Off-White |
| Water Solubility | Slightly soluble in water. |
| LogP | -3.43 at 25℃ |
| CAS DataBase Reference | 98-44-2(CAS DataBase Reference) |
| EPA Substance Registry System | 2-Amino-1,4-benzenedisulfonic acid (98-44-2) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H315-H319-H335 | |||||||||
| Precautionary statements | P261-P280a-P304+P340-P305+P351+P338-P405-P501a | |||||||||
| Risk Statements | 36/37/38-43 | |||||||||
| Safety Statements | 26-36/37/39-36/37 | |||||||||
| RTECS | CZ9250000 | |||||||||
| TSCA | Yes | |||||||||
| NFPA 704 |
|
2-Amino-1,4-benzenedisulfonic acid price More Price(2)
2-Amino-1,4-benzenedisulfonic acid Chemical Properties,Uses,Production
Chemical Properties
off-white powder
Uses
Aniline-2,5-disulfonic acid is used as pharmaceutical intermediate. 2-Amino-1,4-benzenedisulfonic acid is used as an intermediate for dyes; 2-Amino-1,4-benzenedisulfonic acid is converted to triazine derivatives, which are intermediates in the manufacture of dyes and optical brighteners.
Production Methods
2-Amino-1,4-benzenedisulfonic acid is obtained by sulfonating metanilic acid in 100% sulfuric acid with 50% oleum at 160 ℃ (5 – 6 h); the sulfonation mixture is diluted with water, lime is added, and the resulting calcium sulfate is removed; the product is then precipitated with excess concentrated hydrochloric acid in hot solution; yield 90 – 91%
2-Amino-1,4-benzenedisulfonic acid Preparation Products And Raw materials
Raw materials
Preparation Products
Reactive Blue 14
Reactive Orange 1
Reactive blue 40
1,4-Benzenedisulfonic acid, 2-[[4-[[4-[(2,4-diamino-5-nitrophenyl)azo]-6-sulfo-1-naphthalenyl]azo]-1-naphthalenyl]azo]-, trisodium salt
tetrasodium 2-[[4-[[4-[[1-hydroxy-6-(phenylamino)-3-sulphonato-2-naphthyl]azo]-7-sulphonato-1-naphthyl]azo]-1-naphthyl]azo]benzene-1,4-disulphonate
pentasodium 3-[[4-[[4-[[4-chloro-6-[(3-sulphonatophenyl)amino]-1,3,5-triazin-2-yl]amino]-2,5-dimethylphenyl]azo]-2,5-disulphonatophenyl]azo]-4-hydroxy-5-(phenylamino)naphthalene-2,7-disulphonate
Direct Blue 82
DIRECT BLUE 78
Reactive Orange 20
Direct blue 83 (C.I. 34230)
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Global( 237)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | Inquiry |
|---|---|---|---|---|---|
| Shree Ganesh Dye Chem | +91 079-26872726 | Gujarat, India | 97 | 58 | Inquiry |
| CRYSTAL QUINONE PVT LTD | +91-9099918899 +91-9099918899 | Ahmedabad, India | 54 | 58 | Inquiry |
| PARAGON FINE AND SPECIALITY CHEMICAL PVT LTD | +91 9909190838 | Ahmedabad, India | 66 | 58 | Inquiry |
| JSK Chemicals | +919879767970 | Gujarat, India | 3756 | 58 | Inquiry |
| MaheshRaj Chemicals Pvt Ltd | +91 7926870597 | Gujarat, India | 96 | 58 | Inquiry |
| Orgo Chem Pvt Ltd | +91-2223829669 +91-2223829669 | Maharashtra, India | 41 | 58 | Inquiry |
| Sadhana Nitro Chem Ltd | +91-2268663300 +91-2268663300 | Maharashtra, India | 15 | 58 | Inquiry |
| Jagson Colorchem Limited | +91-9879484214 +91-9879484214 | Gujarat, India | 318 | 58 | Inquiry |
| Lion Color | +91-7878052742 +91-7878052742 | Gujarat, India | 25 | 58 | Inquiry |
| Dhanlaxmi Industries | +91-9825034098 +91-9825033738 | Gujarat, India | 40 | 58 | Inquiry |
| Supplier | Advantage |
|---|---|
| Shree Ganesh Dye Chem | 58 |
| CRYSTAL QUINONE PVT LTD | 58 |
| PARAGON FINE AND SPECIALITY CHEMICAL PVT LTD | 58 |
| JSK Chemicals | 58 |
| MaheshRaj Chemicals Pvt Ltd | 58 |
| Orgo Chem Pvt Ltd | 58 |
| Sadhana Nitro Chem Ltd | 58 |
| Jagson Colorchem Limited | 58 |
| Lion Color | 58 |
| Dhanlaxmi Industries | 58 |
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2-Amino-1,4-benzenedisulfonic acid ISO 9001：2015 REACH
Aniline-2,5-disulfonicaci
amino-benzene-1,4-disulfonic acid
3-aminobenzene-1,2-disulfonic acid
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JACS-98-44-2
ANILINE-2,5-DISULFONIC ACID
ANILINE 2,5 DSA
98-44-2
C6H7NO6S2
C6H6S2O6NNa
C6H5NO6S2
Intermediates of Dyes and Pigments