2,2'-Benzidinedisulfonic Acid (contains 30% Water at maximum) - ≥70%(T) , CAS No.117-61-3

CAS: 117-61-3 Cat. No.: B152530 Molecular Weight: 344.36 EC Number: 204-200-0
AVAILABLE TO ORDER
GRADE & PURITY ≥70%(T)
Synonyms
[1,1'-Biphenyl]-2,2'-disulfonic acid, 4,4'-diamino- | 2.2'-Benzidindisulfosaure | Benzidine-2,2'-disulfonic acid | 4,4'-Diamino-(1,1'-biphenyl)-2,2'-disulfonic acid | 6,6'-Bimetanilic acid | W-108561 | 2,2'-Benzidinedisulfonic acid | 4,2'-biphenyldisulfon
Storage
Room temperature
Shipped In
Normal
 ·  off list, applied to all prices below.
Size
Status
Price
Qty
25g
B152530-25g
4

$9.90

$14.90
Save $5.00 (33.56%)
100g
B152530-100g
5

$23.90

$35.90
Save $12.00 (33.43%)
500g
B152530-500g
1

$65.90

$98.90
Save $33.00 (33.37%)
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Why this grade

≥70%(T) for sensitive chromatographic and analytical workflows requiring minimal baseline interference.

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Storage & shipping

Room temperature Ships Normal Check lot-specific COA for exact specifications.

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Quality documents

SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.

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Literature proof

Cited in 11 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Specifications

Synonyms
[1, 1'-Biphenyl]-2, 2'-disulfonic acid, 4, 4'-diamino- | 2.2'-Benzidindisulfosaure | Benzidine-2, 2'-disulfonic acid | 4, 4'-Diamino-(1, 1'-biphenyl)-2, 2'-disulfonic acid | 6, 6'-Bimetanilic acid | W-108561 | 2, 2'-Benzidinedisulfonic acid | 4, 2'-biphenyldisulfon
Specifications & Purity
≥70%(T)
Storage
Room temperature
Shipped In
Normal
Purity
≥70%(T)
Names and Identifiers
Pubchem Sid488180755
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488180755
Canonical SmilesC1=CC(=C(C=C1N)S(=O)(=O)O)C2=C(C=C(C=C2)N)S(=O)(=O)O
IUPAC Name5-amino-2-(4-amino-2-sulfophenyl)benzenesulfonic acid
InChIKeyMBJAPGAZEWPEFB-UHFFFAOYSA-N
INCHI1S/C12H12N2O6S2/c13-7-1-3-9(11(5-7)21(15,16)17)10-4-2-8(14)6-12(10)22(18,19)20/h1-6H,13-14H2,(H,15,16,17)(H,18,19,20)
Isomeric SMILES C1=CC(=C(C=C1N)S(=O)(=O)O)C2=C(C=C(C=C2)N)S(=O)(=O)O
RTECS DV5230000
Molecular Weight 344.36
Reaxy-Rn 2675524
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2675524&ln=

Documentation

📋 Safety Data Sheet (SDS)

Comprehensive hazard, handling, storage, and regulatory compliance document.

Download SDS →

✅ Certificate of Analysis (COA)

Lot-specific quality data. Enter your lot number to retrieve the exact COA.

Look up COA →

📊 Datasheet

Quick-reference summary of product specifications and applications.

View datasheet →

🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

View spec sheet →

Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBiphenyls and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzidines
Alternative Parents Benzenesulfonic acids and derivatives  Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Aniline and substituted anilines  Sulfonyls  Organosulfonic acids  Primary amines  Organopnictogen compounds  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzidine - Benzenesulfonate - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Benzenesulfonyl group - Aniline or substituted anilines - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Hydrocarbon derivative - Organic oxygen compound - Organic nitrogen compound - Primary amine - Organosulfur compound - Organonitrogen compound - Amine - Organic oxide - Organopnictogen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzidines. These are organic compounds containing the benzidine skeleton, made up of a biphenyl ring system substituted at the 4- and 4'-positions with a unsubstituted amine group.
External Descriptors Not available
3D Structure
Interactive Chemical Structure Model





Certificates(CoA,COO,BSE/TSE and Analysis Chart)
C of A & Other Certificates(BSE/TSE, COO):
Analytical Chart:

Find and download the COA for your product by matching the lot number on the packaging.

15 results found

Lot NumberCertificate TypeDateItem
B2221220Certificate of AnalysisDec 10, 2025 B152530
C2521200Certificate of AnalysisDec 31, 2024 B152530
C2521215Certificate of AnalysisDec 31, 2024 B152530
C2521217Certificate of AnalysisDec 31, 2024 B152530
K2407209Certificate of AnalysisNov 14, 2024 B152530
D2428144Certificate of AnalysisMar 15, 2024 B152530
K1927044Certificate of AnalysisSep 08, 2023 B152530
H1808039Certificate of AnalysisJun 15, 2022 B152530
B2221221Certificate of AnalysisDec 27, 2021 B152530
A2503228Certificate of AnalysisDec 24, 2021 B152530
B2221233Certificate of AnalysisDec 24, 2021 B152530
B2221242Certificate of AnalysisDec 24, 2021 B152530
E2330024Certificate of AnalysisDec 24, 2021 B152530
E2330028Certificate of AnalysisDec 24, 2021 B152530
K2308251Certificate of AnalysisDec 24, 2021 B152530

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Chemical and Physical Properties
SolubilityInsoluble in water.
Molecular Weight344.400 g/mol
XLogP3-0.300
Hydrogen Bond Donor Count4
Hydrogen Bond Acceptor Count8
Rotatable Bond Count3
Exact Mass344.014 Da
Monoisotopic Mass344.014 Da
Topological Polar Surface Area178.000 Ų
Heavy Atom Count22
Formal Charge0
Complexity540.000
Isotope Atom Count0
Defined Atom Stereocenter Count0
Undefined Atom Stereocenter Count0
Defined Bond Stereocenter Count0
Undefined Bond Stereocenter Count0
The total count of all stereochemical bonds0
Covalently-Bonded Unit Count1
Citations of This Product
References
1. Zhuang Rao, Airong Zhang, Xiaoling Liu, Deyu Zhu, Guoqing Wang, Minqiu Lan, Zhengyun Wang, Lipei Jiang, Beibei Tang, Hongfang Liu.  (2023)  Construction of Surface Sulfonic and Amino Acid–Base Pair Modified Graphene Oxide for Effectively Promoting the Selectivity of the Proton Exchange Membrane.  ACS Applied Polymer Materials,      [PMID:] [10.1021/acsapm.3c01425]
2. Zhan Hao, Zhenyi Zhao, Hongyu Wu, Zhiyuan Zha, Xinxia Tian, Lixin Xie, Song Zhao.  (2023)  Sulfonated Reverse Osmosis Membrane with Simultaneous Mitigation of Silica Scaling and Organic Fouling.  INDUSTRIAL & ENGINEERING CHEMISTRY RESEARCH,      [PMID:] [10.1021/acs.iecr.3c01519]
3. Lantian Li, Anran Li, Bing Zhao, Wei Kan, Chunyu Bi, Wang Zheng, Xiuwen Wang, Li Sun, Liyan Wang, Hongrui Zhang.  (2022)  Multi-sulfonated functionalized hydrophilic covalent organic framework for highly efficient dye removal from real samples.  NEW JOURNAL OF CHEMISTRY,  46  (35): (17016-17025).  [PMID:] [10.1039/D2NJ02857C]
4. Chunfang Zhang, Xuejian Si, Shuo Zhang, Bei Pei, Jin Gu, Yunxiang Bai.  (2018)  Porous metal–organic molecular cage: a promising candidate to highly improve the nanofiltration performance of thin film nanocomposite membranes.  NEW JOURNAL OF CHEMISTRY,  43  (4): (1699-1709).  [PMID:] [10.1039/C8NJ04603D]
5. Shihua Yu, Zhigang Liu, Jianpo Zhang, Hongwei Li, Na Xu, Xin-xin Yuan, Yuqing Wu.  (2018)  An azo-coupling reaction-based surface enhanced resonance Raman scattering approach for ultrasensitive detection of salbutamol.  RSC Advances,  (10): (5536-5541).  [PMID:35542390] [10.1039/C7RA12927K]
6. Zhigang Liu, Shihua Yu, Shuping Xu, Bing Zhao, Weiqing Xu.  (2017)  Ultrasensitive Detection of Capsaicin in Oil for Fast Identification of Illegal Cooking Oil by SERRS.  ACS Omega,      [PMID:31457378] [10.1021/acsomega.7b01457]
7. Jamal Afzal, Jiashun Zhang, Haijiang Wang.  (2024)  Fabrication of –SO3H-functionalized polyphosphazene-reinforced proton conductive matrix-mixed membranes.  RSC Advances,  14  (20): (14456-14464).  [PMID:38699689] [10.1039/D3RA07094H]
8. Zhuo-Hao Wu, Meidi Wang, Yu-Xin Ren, Shuang Li, Xing-Yu Liu, Yu Cao, Xue-Qian Wu, Guangtong Hai, Zhongyi Jiang, Dong-Sheng Li.  (2024)  MXene-intercalated covalent organic framework membranes for high-flux nanofiltration.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2024.122755]
9. Haipeng Li, Chunyang Fan, Lei Han, Hao Li, Xiaocui Wei, Yanan Liu, Yuhan Yang, Zhongyi Jiang.  (2024)  Polyelectrolyte-assisted fabrication of large-area 2D polymer nanosheet membranes with ultrafast proton conduction.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2024.123621]
10. Du Jingcheng, guan Jian, AL-Thuraya Ali A., Lim Weiwang, Sun Qian, Yao Ayan, Cao Dong, Ma Ji, zhang Yuting, Fan Yumo, Dou Pengjia, Liu Jiangtao.  (2025)  Asymmetric ionic covalent organic framework membranes with tunable Turing patterns prepared via ion regulated strategy.  Nature Communications,  16  (1): (1-17).  [PMID:41027864] [10.1038/s41467-025-63240-5]
11. Bingyao Sun, Jiale Chu, Jie Wang, Ting Qu, Hai Liu, Jing Ni, Chunli Gong, Quanyuan Zhang, Fuqiang Hu.  (2026)  Super high toughness proton exchange membranes with multi-functionalized polyvinylidene fluoride substrate and sulfonated polybenzimidazole.  INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,      [PMID:] [10.1016/j.ijhydene.2026.153437]
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