Determine the necessary mass, volume, or concentration for preparing a solution.
| Activity Type | Relation | Activity value | Units | Action Type | Journal | PubMed Id | doi | Assay Aladdin ID |
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≥99% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature,Argon charged,Cool Ships Normal Check lot-specific COA for exact specifications.
SDS, COA, datasheet, and spec sheet available for download. Lot-specific COA accessible via lot number lookup.
Cited in 9 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504751202 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504751202 |
| Canonical Smiles | C1=CC=C(C(=C1)N)S(=O)(=O)O |
| IUPAC Name | 2-aminobenzenesulfonic acid |
| InChIKey | ZMCHBSMFKQYNKA-UHFFFAOYSA-N |
| INCHI | 1S/C6H7NO3S/c7-5-3-1-2-4-6(5)11(8,9)10/h1-4H,7H2,(H,8,9,10) |
| Isomeric SMILES | C1=CC=C(C(=C1)N)S(=O)(=O)O |
| WGK Germany | 3 |
| RTECS | DB4727700 |
| UN Number | 2585 |
| Packing Group | III |
| Molecular Weight | 173.19 |
| Beilstein | 1309204 |
| Reaxy-Rn | 1309204 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1309204&ln= |
Comprehensive hazard, handling, storage, and regulatory compliance document.
Download SDS →Lot-specific quality data. Enter your lot number to retrieve the exact COA.
Look up COA →Full quality attributes and acceptance criteria for this grade.
View spec sheet →Taxonomy Tree
| Kingdom | Organic compounds |
|---|---|
| Superclass | Benzenoids |
| Class | Benzene and substituted derivatives |
| Subclass | Benzenesulfonic acids and derivatives |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Benzenesulfonic 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 oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic 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 - Amine - Hydrocarbon derivative - Organic oxide - Organopnictogen compound - Organic oxygen compound - Primary amine - Organosulfur compound - Organonitrogen compound - Organic nitrogen compound - Aromatic homomonocyclic compound |
| Description | This 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 | aminobenzenesulfonic acid |
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Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
| Certificate of Analysis | Mar 30, 2026 | A107208 | |
| Certificate of Analysis | Mar 30, 2026 | A107208 | |
| Certificate of Analysis | Mar 30, 2026 | A107208 | |
| Certificate of Analysis | Mar 16, 2026 | A107208 | |
| Certificate of Analysis | Dec 12, 2025 | A107208 | |
| Certificate of Analysis | Dec 12, 2025 | A107208 | |
| Certificate of Analysis | Aug 20, 2024 | A107208 | |
| Certificate of Analysis | Aug 20, 2024 | A107208 | |
| Certificate of Analysis | Aug 20, 2024 | A107208 | |
| Certificate of Analysis | Jul 29, 2024 | A107208 | |
| Certificate of Analysis | Jul 29, 2024 | A107208 | |
| Certificate of Analysis | Jul 29, 2024 | A107208 | |
| Certificate of Analysis | Jul 29, 2024 | A107208 | |
| Certificate of Analysis | Dec 11, 2023 | A107208 | |
| Certificate of Analysis | Feb 11, 2023 | A107208 | |
| Certificate of Analysis | Feb 11, 2023 | A107208 | |
| Certificate of Analysis | Feb 11, 2023 | A107208 | |
| Certificate of Analysis | Feb 11, 2023 | A107208 | |
| Certificate of Analysis | Jan 10, 2022 | A107208 | |
| Certificate of Analysis | Jan 10, 2022 | A107208 | |
| Certificate of Analysis | Jan 10, 2022 | A107208 |
| Sensitivity | air sensitive |
|---|---|
| Melt Point(°C) | >300°C |
| Molecular Weight | 173.190 g/mol |
| XLogP3 | 0.400 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 173.015 Da |
| Monoisotopic Mass | 173.015 Da |
| Topological Polar Surface Area | 88.800 Ų |
| Heavy Atom Count | 11 |
| Formal Charge | 0 |
| Complexity | 218.000 |
| Isotope Atom Count | 0 |
| Defined Atom Stereocenter Count | 0 |
| Undefined Atom Stereocenter Count | 0 |
| Defined Bond Stereocenter Count | 0 |
| Undefined Bond Stereocenter Count | 0 |
| The total count of all stereochemical bonds | 0 |
| Covalently-Bonded Unit Count | 1 |
| 1. Luo Xiaoqing, Weng Qianfeng, Li Jinxiang. (2022) A New Composite of O-aminobenzene Sulfonic Acid Self-Doped Polyaniline and Multi-Walled Carbon Nanotubes as a Fiber Coating for Solid-Phase Microextraction Gas Chromatography. CHROMATOGRAPHIA, 85 (8): (689-697). [PMID:] [10.1007/s10337-022-04177-5] |
| 2. Yue Su, Shihui Qiu, Jiayu Wei, Xiaobo Zhu, Haichao Zhao, Qunji Xue. (2021) Sulfonated polyaniline assisted hierarchical assembly of graphene-LDH nanohybrid for enhanced anticorrosion performance of waterborne epoxy coatings. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2021.131269] |
| 3. Lingli Zhu, Dekui Shen, Qian Liu, Chunfei Wu, Sai Gu. (2021) Sustainable synthesis of bright green fluorescent carbon quantum dots from lignin for highly sensitive detection of Fe3+ ions. APPLIED SURFACE SCIENCE, [PMID:] [10.1016/j.apsusc.2021.150526] |
| 4. Feng Yang, Tong Liu, Jingyu Li, Shihui Qiu, Haichao Zhao. (2018) Anticorrosive behavior of a zinc-rich epoxy coating containing sulfonated polyaniline in 3.5% NaCl solution. RSC Advances, 8 (24): (13237-13247). [PMID:35542541] [10.1039/C8RA00845K] |
| 5. Peng Du, Shihui Qiu, Chengbao Liu, Guangzhou Liu, Haichao Zhao, Liping Wang. (2018) In situ polymerization of sulfonated polyaniline in layered double hydroxide host matrix for corrosion protection. NEW JOURNAL OF CHEMISTRY, 42 (6): (4201-4209). [PMID:] [10.1039/C7NJ05127A] |
| 6. Shihui Qiu, Cheng Chen, Wenru Zheng, Wei Li, Haichao Zhao, Liping Wang. (2017) Long-term corrosion protection of mild steel by epoxy coating containing self-doped polyaniline nanofiber. SYNTHETIC METALS, [PMID:] [10.1016/j.synthmet.2017.05.004] |
| 7. Shihui Qiu, Cheng Chen, Mingjun Cui, Wei Li, Haichao Zhao, Liping Wang. (2017) Corrosion protection performance of waterborne epoxy coatings containing self-doped polyaniline nanofiber. APPLIED SURFACE SCIENCE, [PMID:] [10.1016/j.apsusc.2017.02.142] |
| 8. Xiao Gong, Mengyi Wu, Jiurong Li, Shiwei Zhang, Min Wu. (2024) A rational synthesis strategy of multicolor carbon nanodots for efficient visual detection of NaNO2. Applied Materials Today, [PMID:] [10.1016/j.apmt.2024.102330] |
| 9. Guangpeng Ma, Wenyu Bai, Xinpu Zhou, Xianfeng Guan, Shuyu Zhang, Wanzhen Wu, Cuicui Li, Shuang Wang. (2024) Sulfonated polyaniline/MXene composite electrode with high cycling stability for anti-freezing flexible supercapacitor. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2024.153730] |