ChemicalBook > Product Catalog >Organic Chemistry >Carboxylic acids and derivatives >Carboxylic acid derivatives >2-Amino-1,4-benzenedisulfonic acid
2-Amino-1,4-benzenedisulfonic acid
![2-Amino-1,4-benzenedisulfonic acid Structure](CAS/GIF/98-44-2.gif)
- 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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4-SULFOMETANILIC ACID
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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
1,4-Benzenedisulfonic acid, 2-amino-
JACS-98-44-2
ANILINE-2,5-DISULFONIC ACID
ANILINE 2,5 DSA
98-44-2
C6H7NO6S2
C6H6S2O6NNa
C6H5NO6S2
Intermediates of Dyes and Pigments