3,4-Diaminobenzenesulfonic acid
- CAS No.
- 7474-78-4
- Chemical Name:
- 3,4-Diaminobenzenesulfonic acid
- Synonyms
- DBS;DIBUTYL DECANEDIOATE;MCF2L;ARHGEF14;FEMA 2373;BUTYL SEBACATE;JACS-7474-78-4;Orthaminic acid;N-BUTYL SEBACATE;DI-N-BUTYL SEBACATE
- CBNumber:
- CB9312890
- Molecular Formula:
- C6H8N2O3S
- Molecular Weight:
- 188.2
- MDL Number:
- MFCD00270799
- MOL File:
- 7474-78-4.mol
- MSDS File:
- SDS
| Melting point | -12 °C |
|---|---|
| Boiling point | 178-179 °C3 mm Hg(lit.) |
| Density | 0.936 g/mL at 25 °C(lit.) |
| refractive index |
n |
| Flash point | >230 °F |
| storage temp. | Keep in dark place,Sealed in dry,Room Temperature |
| solubility | hexane, toluene, ethanol and acetone: soluble |
| pka | -0.52±0.50(Predicted) |
| form | Solid |
| color | Dark Brown |
| Dielectric constant | 4.5(30℃) |
| InChI | InChI=1S/C6H8N2O3S/c7-5-2-1-4(3-6(5)8)12(9,10)11/h1-3H,7-8H2,(H,9,10,11) |
| InChIKey | FKSRSWQTEJTBMI-UHFFFAOYSA-N |
| SMILES | C1(S(O)(=O)=O)=CC=C(N)C(N)=C1 |
| CAS DataBase Reference | 7474-78-4(CAS DataBase Reference) |
| FDA UNII | J9E8XPC6K2 |
| EPA Substance Registry System | Benzenesulfonic acid, 3,4-diamino- (7474-78-4) |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P305+P351+P338 | |||||||||
| Hazard Codes | Xi | |||||||||
| Risk Statements | 36/37/38 | |||||||||
| Safety Statements | 26-36 | |||||||||
| WGK Germany | 1 | |||||||||
| RTECS | VS1150000 | |||||||||
| TSCA | TSCA listed | |||||||||
| REACH Registrations | Inactive | |||||||||
| NFPA 704 |
|
3,4-Diaminobenzenesulfonic acid price More Price(47)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Usbiological | 525235 | MCF2L Purifiedbyimmunoaffinitychromatography. | 100ul | $736 | 2026-06-03 | Buy | |
| Usbiological | 525235 | MCF2L Purifiedbyimmunoaffinitychromatography. | 200ul | $944 | 2026-06-03 | Buy | |
| TRC | TRC-D415015-50MG | 3,4-Diaminobenzenesulfonic Acid | 7474-78-4 | 50mg | $65 | 2026-06-03 | Buy |
| TRC | TRC-D415015-250MG | 3,4-Diaminobenzenesulfonic Acid | 7474-78-4 | 250mg | $103 | 2026-06-03 | Buy |
| TRC | TRC-D415015-1G | 3,4-Diaminobenzenesulfonic Acid | 7474-78-4 | 1g | $227 | 2026-06-03 | Buy |
3,4-Diaminobenzenesulfonic acid Chemical Properties, Uses, Production
Uses
3,4-Diaminobenzenesulfonic Acid is a useful organic synthetic reagent and a sulfonate-aminium zwitterion.
Synthesis
95-54-5
7474-78-4
The general procedure for the synthesis of 3,4-diaminobenzenesulfonic acid from o-phenylenediamine was as follows: first, the sulfonation mixture was prepared by dissolving 160 g (1.48 mol) of 1,2-diaminobenzene in 800 g (435 mL; 8.16 mol) of 95-97% sulfuric acid. Subsequently, the sulfonated mixture was divided into four portions and pumped into a continuous flow microreactor for the reaction. The microreactor consisted of a sequentially connected inlet module, five residence modules and an outlet module, each of which was maintained at a constant reaction temperature. Upon completion of the reaction, the sulfonation mixture was rapidly cooled with water at the reactor outlet to allow the sulfonation reaction products to precipitate in an ice-water bath. After filtration, the resulting white product was characterized by nuclear magnetic resonance (NMR). Based on 1H-NMR spectroscopy (400 MHz, DMSO-d6) analysis, no isomers were detected in all the products isolated in the experiments, confirming the formation of 3,4-diaminobenzenesulfonic acid and the absence of impurities. The yields of the products were influenced by the reaction temperature and residence time: 80% at 160 °C reaction temperature for 25 min, 89%, 90% and 100% at 180 °C reaction temperature for 5, 10 and 25 min, respectively.
References
[1] Patent: WO2012/74822, 2012, A1. Location in patent: Page/Page column 19-20
[2] Patent: EP2457886, 2012, A1. Location in patent: Page/Page column 9
[3] Patent: EP1400507, 2004, A1. Location in patent: Page 4; 5
[4] Tetrahedron, 2008, vol. 64, # 22, p. 5410 - 5415
[5] Patent: US2012/225863, 2012, A1. Location in patent: Page/Page column 40
3,4-Diaminobenzenesulfonic acid Preparation Products And Raw materials
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Beijing Nordhuns Chemical Technology Co.,Ltd | 010-84929330 13811281791 | info@nordhuns.com | China | 299 | 58 |
| Zhengzhou Acme Chemical Co., Ltd. | 037163312495 13303845143 | 1416159398@qq.com | China | 10150 | 58 |
| Zhengzhou Deyuankai Chemical Co., LTD | 17837139533 | 1165412154@qq.com | China | 7738 | 58 |
| Langfang Yanghao Technology Co., Ltd | 18832637618 | 1710304996@qq.com | China | 51 | 58 |
| J & K SCIENTIFIC LTD. | 18210857532 18210857532 | jkinfo@jkchemical.com | China | 96815 | 76 |
| Energy Chemical | 400-0056266 | sales8178@energy-chemical.com | China | 44850 | 61 |
| Beijing Ouhe Technology Co., Ltd | 13552068683 13522913783 | 2355560935@qq.com | China | 11777 | 60 |
| Maya High Purity Chemicals | +86 (573) 82222445 (0)18006601000 452520369 | sales@maya-r.com | China | 11693 | 57 |
| Quzhou Juhua Friendship Co., Ltd | 0570-3066667 | China | 3922 | 58 | |
| Bide Pharmatech Ltd. | 400-164-7117 18317119277 | product02@bidepharm.com | China | 40000 | 60 |
View Latest Price from 3,4-Diaminobenzenesulfonic acid manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2026-09-02 | 3,4-Diaminobenzenesulfonic acid
7474-78-4
|
$5.00 | 1KG | 98% | Henan Fengda Chemical Co., Ltd | ||
 |
2026-08-20 | 3,4-Diaminobenzenesulfonic acid
7474-78-4
|
$1.10 | 1g | 99.00% | 100 Tons Min | Dideu Industries Group Limited | |
 |
2020-02-26 | 3,4-Diaminobenzenesulfonic acid
7474-78-4
|
1KG | 99.0%+ | 100 tons | Shaanxi Dideu Medichem Co. Ltd |
-
- 3,4-Diaminobenzenesulfonic acid
7474-78-4
- $5.00
- 98%
- Henan Fengda Chemical Co., Ltd
-
- 3,4-Diaminobenzenesulfonic acid
7474-78-4
- $1.10
- 99.00%
- Dideu Industries Group Limited
-
- 3,4-Diaminobenzenesulfonic acid
7474-78-4
- 99.0%+
- Shaanxi Dideu Medichem Co. Ltd
