Cas no 88-63-1 (2,4-Diaminobenzenesulfonic acid)

2,4-Diaminobenzenesulfonic acid is a water-soluble diaminosulfonated aromatic compound. It offers improved solubility and stability in aqueous solutions, facilitating its use as a reagent or intermediate in various chemical syntheses, such as dye production and pharmaceutical applications, due to its reactive amine groups.
2,4-Diaminobenzenesulfonic acid structure
88-63-1 structure
Product Name:2,4-Diaminobenzenesulfonic acid
CAS No:88-63-1
MF:C6H8N2O3S
MW:188.204319953918
MDL:MFCD00035772
CID:34473
PubChem ID:87575015
Update Time:2026-01-22

2,4-Diaminobenzenesulfonic acid Chemical and Physical Properties

Names and Identifiers

    • 2,4-Diaminobenzenesulfonic acid
    • MPDSA
    • 1,3-Diaminobenzene-4-sulfonic acid
    • 1,3-Diaminobenzene-6-sulfonic acid
    • 1,3-Phenylenediamine-4-sulfonic acid
    • 2,4-diamino-benzenesulfonic acid
    • o-Aminosulfanilic acid
    • m-Phenylenediamine-4-sulfonic acid
    • m-Phenylenediaminesulfonic acid
    • meta Phenylenediamine-4-Sulfonic Acid
    • Meta Acid
    • 1,3-diamino-4-sulfo-benzene
    • 1,3-Diaminobenzenesulfonic acid
    • 2,4-Diaminobenzenesulphonic acid
    • 2,4-phenylenediamine-1-sulfonic acid
    • A861706
    • SCHEMBL343300
    • Benzenesulfonic acid, 2,4-diamino-
    • CHEMBL3184102
    • Z240985232
    • FT-0606741
    • AKOS003237071
    • 2,4-diaminobenzene sulphonic acid
    • DTXCID1024465
    • W-100397
    • METAPHENYLENEDIAMINE-4-SULFONIC ACID
    • LS-31840
    • AC-10252
    • 2,4-Diaminobenzenesulfonic acid, >=98.0% (T)
    • CS-0244369
    • P0893
    • UNII-863X637R5Q
    • 2-14-00-00443 (Beilstein Handbook Reference)
    • EN300-27661
    • E70013
    • Q27269698
    • EINECS 201-846-5
    • STK366992
    • Kyselina 2,4-diaminobenzensulfonova
    • 2,4-Diaminobenzenesulfonicacid
    • 863X637R5Q
    • 2,4-diaminobenzensulfonsyre
    • Tox21_302078
    • 88-63-1
    • NSC-7835
    • CAS-88-63-1
    • MFCD00035772
    • NCGC00255816-01
    • 1,3-diaminobenzene-4-sulphonic acid
    • Kyselina 1,3-fenylendiamin-4-sulfonova
    • NSC7835
    • DTXSID3044465
    • BRN 2694057
    • NSC 7835
    • SY051053
    • 2,4-diaminobenzene-1-sulfonic acid
    • Kyselina 2,4-diaminobenzensulfonova [Czech]
    • Kyselina 1,3-fenylendiamin-4-sulfonova [Czech]
    • JVMSQRAXNZPDHF-UHFFFAOYSA-N
    • WLN: ZR BSWQ EZ
    • 2,4-Diaminobenzenesulfonic acid (ACI)
    • 1-Sulfo-2,4-phenylenediamine
    • 2,4-Diamino-1-benzenesulfonic acid
    • 4-Sulfo-1,3-diaminobenzene
    • ABSA
    • DB-057091
    • 1,3-phenylenediamine-4-sulfo acid
    • LS-13135
    • NS00014426
    • MDL： MFCD00035772
    • Inchi： 1S/C6H8N2O3S/c7-4-1-2-6(5(8)3-4)12(9,10)11/h1-3H,7-8H2,(H,9,10,11)
    • InChI Key： JVMSQRAXNZPDHF-UHFFFAOYSA-N
    • SMILES： O=S(C1C(N)=CC(N)=CC=1)(O)=O

Computed Properties

  • Exact Mass: 188.02600
  • Monoisotopic Mass: 188.026
  • Isotope Atom Count: 0
  • Hydrogen Bond Donor Count: 3
  • Hydrogen Bond Acceptor Count: 5
  • Heavy Atom Count: 12
  • Rotatable Bond Count: 1
  • Complexity: 246
  • Covalently-Bonded Unit Count: 1
  • Defined Atom Stereocenter Count: 0
  • Undefined Atom Stereocenter Count : 0
  • Defined Bond Stereocenter Count: 0
  • Undefined Bond Stereocenter Count: 0
  • Topological Polar Surface Area: 115A^2
  • Surface Charge: 0
  • Tautomer Count: nothing
  • XLogP3: nothing

Experimental Properties

  • Color/Form: Light brown crystals, crystals precipitated from water are monoclinic crystals.
  • Density: 1.366 (estimate)
  • Melting Point: 260-266?°C (dec.)
  • Boiling Point: 500°C (estimate)
  • Refractive Index: 1.6490 (estimate)
  • PSA: 114.79000
  • LogP: 2.34090
  • Solubility: It is easily soluble in hot water, slightly soluble in cold water, and gradually turns brown in the air.

2,4-Diaminobenzenesulfonic acid Security Information

  • Symbol: GHS07
  • Prompt：warning
  • Signal Word：Warning
  • Hazard Statement： H315-H317-H319
  • Warning Statement： P280-P305 + P351 + P338
  • Hazardous Material transportation number：1759
  • WGK Germany：2
  • Hazard Category Code： 36/38-43
  • Safety Instruction： S26-S36/39-S37/39
  • RTECS：DB5900000
  • Hazardous Material Identification： Xi
  • HazardClass：8
  • PackingGroup：III
  • Storage Condition：Store in a cool, dry place. Store in tightly closed containers.
  • Safety Term：8
  • Packing Group：III
  • Risk Phrases：R36/37/38

2,4-Diaminobenzenesulfonic acid Customs Data

  • HS CODE：2921519090
  • Customs Data：

    China Customs Code:

    2921519090

    Overview:

    2921519090. between-\right-Phenylenediamine\Diaminotoluene, etc. [including derivatives and their salts]. VAT:17.0%. Tax refund rate:17.0%. Regulatory conditions:nothing. MFN tariff:6.5%. general tariff:30.0%

    Declaration elements:

    Product Name, component content, use to

    Summary:

    2921519090. o-, m-, p-phenylenediamine, diaminotoluenes, and their derivatives; salts thereof. VAT:17.0%. Tax rebate rate:17.0%. . MFN tariff:6.5%. General tariff:30.0%

2,4-Diaminobenzenesulfonic acid Pricemore >>

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2,4-Diaminobenzenesulfonic acid Production Method

Production Method 1

Reaction Conditions
1.1 Reagents: Sodium hydroxide ,  Benzenesulfonamide, N-bromo-, sodium salt (1:1) Catalysts: Chloro[2-[[(1H-pyrrol-2-yl-κN)methylene]amino-κN]phenolato(2-)-κO]bis(triphenylp… Solvents: Acetonitrile ,  Water ;  265 min, 313 K
Reference
Development of an efficient ruthenium catalyzed synthetic process and mechanism for the facile conversion of benzothiazoles to orthanilic acids
Jagadeesh, R. V.; Karthikeyan, P.; Nithya, P.; Sandhya, Y. Sree; Reddy, S. Sudhaker; et al, Journal of Molecular Catalysis A: Chemical, 2010, 328(1-2), 99-107

Production Method 2

Reaction Conditions
1.1 Reagents: Hydrogen Catalysts: Palladium ;  2 h, 0.8 - 1.0 MPa, 85 - 90 °C; 30 min, 1.0 MPa, 85 - 90 °C
Reference
Catalytic hydrogenation process of 2,4-dinitrobenzenesulfonic acid
Yu, Yong; Zhao, Yong; Ji, Xiaozheng; Xiao, Rong, Ranliao Yu Ranse, 2009, 46(6), 36-37

Production Method 3

Reaction Conditions
Reference
Process for the preparation of 2,4-diaminobenzenesulfonic acid
, European Patent Organization, , ,

2,4-Diaminobenzenesulfonic acid Raw materials

2,4-Diaminobenzenesulfonic acid Preparation Products

2,4-Diaminobenzenesulfonic acid Suppliers

Amadis Chemical Company Limited
Gold Member
Audited Supplier Audited Supplier
(CAS:88-63-1)2,4-Diaminobenzenesulfonic acid
Order Number:A861706
Stock Status:in Stock
Quantity:500g
Purity:99%
Pricing Information Last Updated:Friday, 30 August 2024 08:31
Price ($):200.0
Tiancheng Chemical (Jiangsu) Co., Ltd
Gold Member
Audited Supplier Audited Supplier
(CAS:88-63-1)2,4-二氨基苯磺酸
Order Number:LE8664921
Stock Status:in Stock
Quantity:25KG,200KG,1000KG
Purity:99%
Pricing Information Last Updated:Friday, 20 June 2025 12:47
Price ($):discuss personally

2,4-Diaminobenzenesulfonic acid Spectrogram

1H NMR 300 MHz DMSO
1H NMR
13C NMR
13C NMR

2,4-Diaminobenzenesulfonic acid Related Literature

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88-63-1 (2,4-Diaminobenzenesulfonic acid) Related Products

Recommended suppliers
Amadis Chemical Company Limited
(CAS:88-63-1)2,4-Diaminobenzenesulfonic acid
A861706
Purity:99%
Quantity:500g
Price ($):200.0
Email
Tiancheng Chemical (Jiangsu) Co., Ltd
(CAS:88-63-1)2,4-二氨基苯磺酸
LE8664921
Purity:99%
Quantity:25KG,200KG,1000KG
Price ($):Inquiry
Email