ChemicalBook > CAS DataBase List > 3,4-Diaminobenzenesulfonic acid

3,4-Diaminobenzenesulfonic acid

Product Name: 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
Formula Weight: 188.2
MOL File: 7474-78-4.mol

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3,4-Diaminobenzenesulfonic acid Property

Melting point:: -12 °C
Boiling point:: 178-179 °C3 mm Hg(lit.)
Density: 0.936 g/mL at 25 °C(lit.)
refractive index: n20/D 1.441(lit.)
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)
EPA Substance Registry System: Benzenesulfonic acid, 3,4-diamino- (7474-78-4)

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Safety

Hazard Codes: Xi
Risk Statements: 36/37/38
Safety Statements: 26-36
WGK Germany: 1
RTECS: VS1150000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

TRC

Product number: D415015
Product name: 3,4-DiaminobenzenesulfonicAcid
Packaging: 250mg
Price: $80
Updated: 2021/12/16

TRC

Product number: D415015
Product name: 3,4-DiaminobenzenesulfonicAcid
Packaging: 50mg
Price: $50
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FD133281
Product name: 3,4-Diaminobenzenesulfonic acid
Packaging: 500mg
Price: $75
Updated: 2021/12/16

Matrix Scientific

Product number: 157229
Product name: 3,4-Diaminobenzenesulfonic acid
Packaging: 500mg
Price: $120
Updated: 2021/12/16

Biosynth Carbosynth

Product number: FD133281
Product name: 3,4-Diaminobenzenesulfonic acid
Packaging: 1g
Price: $128
Updated: 2021/12/16

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3,4-Diaminobenzenesulfonic acid Chemical Properties,Usage,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

Raw materials

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View Lastest Price from 3,4-Diaminobenzenesulfonic acid manufacturers

Henan Fengda Chemical Co., Ltd

Product: 3,4-Diaminobenzenesulfonic acid 7474-78-4
Price: US $5.00-0.20/KG
Min. Order: 1KG
Purity: 98%
Supply Ability: g-kg-tons, free sample is available
Release date: 2024-03-26

Shaanxi Dideu Medichem Co. Ltd

Product: 3,4-Diaminobenzenesulfonic acid 7474-78-4
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99.0%+
Supply Ability: 100 tons
Release date: 2019-12-30

Career Henan Chemical Co

Product: 3,4-Diaminobenzenesulfonic acid 7474-78-4
Price: US $1.00/kg
Min. Order: 1kg
Purity: 99%
Supply Ability: 100KG
Release date: 2018-12-18

7474-78-4, 3,4-Diaminobenzenesulfonic acidRelated Search:

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BIS(N-BUTYL) SEBACATE

DI-N-BUTYL SEBACATE

DIBUTYL DECANEDIOATE

DECANEDIOIC ACID DIBUTYL ESTER

DBS

BUTYL SEBACATE

FEMA 2373

1,2-PHENYLENEDIAMINE-4-SULFONIC ACID

3,4-Diaminobenzenesulfonic acid

3,4-diaminobenzenesulphonic acid

Anti-MCF2L (N-terminal) antibody produced in rabbit

ARHGEF14

MCF2L

Benzenesulfonic acid, 3,4-diamino-

Orthaminic acid

3,4-diaMinobenzene-1-sulfonic acid

o-Phenylene diamino-4-sulfonic acid

N,N-diethyl-4-prop-2-enoxy-3,5-dipropylbenzamide

SEBACIC ACID DIBUTYL ESTER

SEBACIC ACID DI-N-BUTYL ESTER

N-BUTYL SEBACATE

JACS-7474-78-4

3,4-Diaminobenzenesulfonicaci

3,4-Diaminobenzenesulfonic acid ISO 9001：2015 REACH

3,4-Diaminobenzenesulfonic sodium

7474-78-4

CH28COOC4H92

NH22C6H3SO3H

Carbonyl Compounds

C12 to C63

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