4-Amino-benzenesulfonic acid monosodium salt - ≥97% , CAS No.515-74-2

CAS: 515-74-2 Cat. No.: A193694 Molecular Weight: 195.17 EC Number: 208-208-5
AVAILABLE TO ORDER
GRADE & PURITY ≥97%
Synonyms
Sulfanilic acid monosodium salt | YEA33370 | 9YJ2Q81720 | Benzenesulfonic acid, 4-amino-, sodium salt (1:1) | GS-3364 | sodium 4-azanylbenzenesulfonate | A828659 | CCRIS 7446 | N-methypyrrolidone | CAS-515-74-2 | SCHEMBL646075 | Benzenesulfonic acid, 4-am
Storage
Room temperature
Shipped In
Normal
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Size
Status
Price
Qty
25g
A193694-25g
5
$10.90
100g
A193694-100g
4
$26.90
500g
A193694-500g
1
$66.90
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Why this grade

≥97% 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 10 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.

Overview

Sodium Sulphanilate is a biochemical indice of inflammation-associated acute-phase response.

Specifications

Synonyms
Sulfanilic acid monosodium salt | YEA33370 | 9YJ2Q81720 | Benzenesulfonic acid, 4-amino-, sodium salt (1:1) | GS-3364 | sodium 4-azanylbenzenesulfonate | A828659 | CCRIS 7446 | N-methypyrrolidone | CAS-515-74-2 | SCHEMBL646075 | Benzenesulfonic acid, 4-am
Specifications & Purity
≥97%
Storage
Room temperature
Shipped In
Normal
Purity
≥97%
Names and Identifiers
Pubchem Sid488200401
Pubchem Sid Urlhttps://pubchem.ncbi.nlm.nih.gov/substance/488200401
Canonical SmilesC1=CC(=CC=C1N)S(=O)(=O)[O-].[Na+]
IUPAC Namesodium;4-aminobenzenesulfonate
InChIKeyKSVSZLXDULFGDQ-UHFFFAOYSA-M
INCHI1S/C6H7NO3S.Na/c7-5-1-3-6(4-2-5)11(8,9)10;/h1-4H,7H2,(H,8,9,10);/q;+1/p-1
Isomeric SMILES C1=CC(=CC=C1N)S(=O)(=O)[O-].[Na+]
Alternate CAS 123333-70-0;6106-22-5
Molecular Weight 195.17
Reaxy-Rn 3919712
Reaxys-RN_link_address https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=3919712&ln=

Documentation

📋 Safety Data Sheet (SDS)

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

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✅ Certificate of Analysis (COA)

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

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📊 Datasheet

Quick-reference summary of product specifications and applications.

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🔬 Specification Sheet

Full quality attributes and acceptance criteria for this grade.

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Advanced Data

Taxonomic Classification

Taxonomy Tree

KingdomOrganic compounds
SuperclassBenzenoids
ClassBenzene and substituted derivatives
SubclassBenzenesulfonic acids and derivatives
Intermediate Tree Nodes Not available
Direct ParentBenzenesulfonic acids and derivatives
Alternative Parents Benzenesulfonyl compounds  1-sulfo,2-unsubstituted aromatic compounds  Aniline and substituted anilines  Sulfonyls  Organosulfonic acids  Primary amines  Organopnictogen compounds  Organic sodium salts  Organic oxides  Hydrocarbon derivatives  
Molecular FrameworkAromatic homomonocyclic compounds
Substituents Benzenesulfonate - Arylsulfonic acid or derivatives - Benzenesulfonyl group - 1-sulfo,2-unsubstituted aromatic compound - Aniline or substituted anilines - Organic sulfonic acid or derivatives - Organosulfonic acid or derivatives - Organosulfonic acid - Sulfonyl - Organic alkali metal salt - Amine - Organic salt - Organic sodium salt - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Primary amine - Organosulfur compound - Organonitrogen compound - Organic nitrogen compound - Aromatic homomonocyclic compound
DescriptionThis compound belongs to the class of organic compounds known as benzenesulfonic acids and derivatives. These are organic compounds containing a sulfonic acid or a derivative thereof that is linked to a benzene ring.
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.

21 results found

Lot NumberCertificate TypeDateItem
D2310196Certificate of AnalysisJan 20, 2026 A193694
B2307216Certificate of AnalysisOct 30, 2025 A193694
B2307211Certificate of AnalysisOct 30, 2025 A193694
I2509140Certificate of AnalysisSep 15, 2025 A193694
I2509139Certificate of AnalysisSep 15, 2025 A193694
K2507259Certificate of AnalysisSep 15, 2025 A193694
K2507258Certificate of AnalysisSep 15, 2025 A193694
K2507257Certificate of AnalysisSep 15, 2025 A193694
K2507248Certificate of AnalysisSep 15, 2025 A193694
F2502139Certificate of AnalysisJun 10, 2025 A193694
L2122283Certificate of AnalysisApr 18, 2025 A193694
B2520024Certificate of AnalysisFeb 22, 2025 A193694
L2122207Certificate of AnalysisOct 22, 2024 A193694
L2122208Certificate of AnalysisOct 22, 2024 A193694
L2122209Certificate of AnalysisOct 22, 2024 A193694
G2121088Certificate of AnalysisMay 21, 2024 A193694
G2121086Certificate of AnalysisMay 21, 2024 A193694
E1814076Certificate of AnalysisJan 22, 2024 A193694
G2403012Certificate of AnalysisNov 30, 2021 A193694
D2310202Certificate of AnalysisNov 30, 2021 A193694
B2310196Certificate of AnalysisNov 30, 2021 A193694

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Chemical and Physical Properties
Molecular Weight195.170 g/mol
XLogP3
Hydrogen Bond Donor Count1
Hydrogen Bond Acceptor Count4
Rotatable Bond Count1
Exact Mass194.997 Da
Monoisotopic Mass194.997 Da
Topological Polar Surface Area91.600 Ų
Heavy Atom Count12
Formal Charge0
Complexity215.000
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 Count2
Citations of This Product
References
1. Pengxin Shen, Junbin Liao, Quan Chen, Huimin Ruan, Jiangnan Shen.  (2021)  Organic solvent resistant Kevlar nanofiber-based cation exchange membranes for electrodialysis applications.  JOURNAL OF MEMBRANE SCIENCE,      [PMID:] [10.1016/j.memsci.2021.119300]
2. Yan Zhao, Yi Li, Shushan Yuan, Junyong Zhu, Sofie Houtmeyers, Jian Li, Raf Dewil, Congjie Gao, Bart Van der Bruggen.  (2019)  A chemically assembled anion exchange membrane surface for monovalent anion selectivity and fouling reduction.  Journal of Materials Chemistry A,  (11): (6348-6356).  [PMID:] [10.1039/C8TA11868J]
3. Ying Li, Mingwei Zhao, Caili Dai, Hongbo Zeng, Yingpeng Chen, Yining Wu, Xin Sun.  (2024)  Preparation of Pickering emulsion stabilized by novel amphiphilic silicon quantum dots and its application in enhanced oil recovery.  JOURNAL OF MOLECULAR LIQUIDS,      [PMID:] [10.1016/j.molliq.2024.125073]
4. Mingwei Zhao, Ying Li, Caili Dai, Yingpeng Chen, Xin Sun, Xinyu Ge, Shixu Ma.  (2024)  Synthesis of amphiphilic silicon quantum dots and its application in high efficiency imbibition oil recovery in low permeability reservoirs.  COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS,      [PMID:] [10.1016/j.colsurfa.2024.134917]
5. Xuan Han, Chao Guo, Hui Wang, Weijuan Xu, Qinlian Liu, Qingshan Zhao, Mingbo Wu.  (2025)  Defect-Rich Co(OH)2 Induced by Carbon Dots for Oxygen Evolution Reaction.  Catalysts,  15  (3): (219).  [PMID:] [10.3390/catal15030219]
6. Tianxiang Li, Zhengren Shi, Xianru He, Ping Jiang, Xiaobin Lu, Rui Zhang, Xin Wang.  (2018)  Aging-Resistant Functionalized LDH–SAS/Nitrile-Butadiene Rubber Composites: Preparation and Study of Aging Kinetics/Anti-Aging Mechanism.  Materials,  11  (5): (836).  [PMID:29783656] [10.3390/ma11050836]
7. Xiaodi Ye, Cheng Zhan, Bingtao Wang, Ting Sai, Chengfeng Zhang, Juan Li, Zhenghong Guo, Siqi Huo.  (2024)  Engineering sulfonated carbon black for flame-retardant and smoke-suppressive polycarbonate with well-preserved mechanical performances.  POLYMER DEGRADATION AND STABILITY,      [PMID:] [10.1016/j.polymdegradstab.2024.111012]
8. Xiaodi Ye, Cheng Zhan, Ting Sai, Bingtao Wang, Juan Li, Chengfeng Zhang, Yanfei Wang, Zhenghong Guo, Siqi Huo.  (2025)  Flame-retardant and UV-resistant polycarbonate composites with well-preserved mechanical properties enabled by silsesquioxane/sulfonate-functionalized nano carbon black.  COMPOSITES COMMUNICATIONS,      [PMID:] [10.1016/j.coco.2025.102407]
9. Jiangtao Tong, Yitong Wang, Yuhua Wang, Haijun Zhang, Jianxin Li, Denglei Zhu, Yao Guo, Xiaojing Bai, Chaojun Cui.  (2026)  Coordinated Solvation and Interphase Regulation by Sodium p-Aminobenzenesulfonate for Long-Life Aqueous Zinc-Ion Batteries.  Carbon Neutralization,  (1): (e70123).  [PMID:] [10.1002/cnl2.70123]
10. Taotao Sun, Hongfeng Yin, Xuemin Yuan, Xiaolong Yu, Jie Zhang.  (2026)  Effect of the adsorption of a cross-linked porous dispersant on the regulation of free water and slurryability of coal.  FUEL,      [PMID:] [10.1016/j.fuel.2026.138914]
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