≥96%, contains <20%H2O for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Argon charged,Room temperature 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 7 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Canonical Smiles | C1=CC2=C(C(=C1)N)C(=CC=C2)S(=O)(=O)O |
|---|---|
| IUPAC Name | 8-aminonaphthalene-1-sulfonic acid |
| InChIKey | CYJJLCDCWVZEDZ-UHFFFAOYSA-N |
| INCHI | 1S/C10H9NO3S/c11-8-5-1-3-7-4-2-6-9(10(7)8)15(12,13)14/h1-6H,11H2,(H,12,13,14) |
| Isomeric SMILES | C1=CC2=C(C(=C1)N)C(=CC=C2)S(=O)(=O)O |
| Molecular Weight | 223.25 |
| Beilstein | 14(3)2246 |
| Reaxy-Rn | 983230 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=983230&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 | Naphthalenes |
| Subclass | Naphthalene sulfonic acids and derivatives |
| Intermediate Tree Nodes | Naphthalene sulfonates |
| Direct Parent | 1-naphthalene sulfonates |
| Alternative Parents | 1-naphthalene sulfonic acids and derivatives 1-sulfo,2-unsubstituted aromatic compounds Sulfonyls Organosulfonic acids Primary amines Organopnictogen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | 1-naphthalene sulfonate - 1-naphthalene sulfonic acid or derivatives - Arylsulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - 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 homopolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as 1-naphthalene sulfonates. These are organic aromatic compounds that contain a naphthalene moiety that carries a sulfonic acid group at the 1-position. Naphthalene is a bicyclic compound that is made up of two fused benzene ring. |
| External Descriptors | Not available |
Find and download the COA for your product by matching the lot number on the packaging.
| Lot Number | Certificate Type | Date | Item |
|---|---|---|---|
 J2530224 | Certificate of Analysis | Oct 11, 2025 | A598478 |
| J2530225 | Certificate of Analysis | Oct 11, 2025 | A598478 |
| J2530226 | Certificate of Analysis | Oct 11, 2025 | A598478 |
| H2430578 | Certificate of Analysis | Jul 10, 2024 | A598478 |
| H2430579 | Certificate of Analysis | Jul 10, 2024 | A598478 |
| H2430580 | Certificate of Analysis | Jul 10, 2024 | A598478 |
| H2430581 | Certificate of Analysis | Jul 10, 2024 | A598478 |
| H2303188 | Certificate of Analysis | Aug 11, 2023 | A598478 |
| H2303239 | Certificate of Analysis | Aug 11, 2023 | A598478 |
| H2303257 | Certificate of Analysis | Aug 11, 2023 | A598478 |
| Sensitivity | Air sensitive |
|---|---|
| Melt Point(°C) | >300℃ |
| Molecular Weight | 223.250 g/mol |
| XLogP3 | 1.200 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 223.03 Da |
| Monoisotopic Mass | 223.03 Da |
| Topological Polar Surface Area | 88.800 Ų |
| Heavy Atom Count | 15 |
| Formal Charge | 0 |
| Complexity | 322.000 |
| 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. Yufeng Chen, Yi Sun, Yueli Meng, Shulai Liu, Yicheng Ding, Xuxia Zhou, Yuting Ding. (2022) Synergistic effect of microfluidization and transglutaminase cross-linking on the structural and oil–water interface functional properties of whey protein concentrate for improving the thermal stability of nanoemulsions. FOOD CHEMISTRY, [PMID:36527918] [10.1016/j.foodchem.2022.135147] |
| 2. Yao Zhong, Qiang Deng, Peixin Zhang, Jun Wang, Rong Wang, Zheling Zeng, Shuguang Deng. (2018) Sulfonic acid functionalized hydrophobic mesoporous biochar: Design, preparation and acid-catalytic properties. FUEL, [PMID:] [10.1016/j.fuel.2018.11.152] |
| 3. Ziyan Huang, Yuting Wang, David Julian McClements, Ruihong Dong, Yu Wang, Qin Wang, Huifan Liu, Qiang Yu, Jianhua Xie, Yi Chen. (2024) Investigation of the interaction mechanism of citrus pectin-polyphenol-protein complex. FOOD CHEMISTRY, [PMID:39700817] [10.1016/j.foodchem.2024.142419] |
| 4. Mao-Cheng Sun, Ying-Di Wang, Jie-Ting Wang, Shi-Qi Yu, Lin-Yu Hu, Yu-Xin Chen, Tiehua Zhang, Changhui Zhao. (2025) Whey protein isolate-reuterin complexes: Structure and functional properties. Food Chemistry-X, [PMID:41049780] [10.1016/j.fochx.2025.102939] |
| 5. Mingmin Qing, Jingnan Zang, Yaotong Liu, Yujie Chi, Yuan Chi. (2025) Glutamic acid-mediated structural reconfiguration in thermally stressed liquid egg white: Decoupling colloidal aggregation for synergistic interfacial stabilization and foamability enhancement. FOOD CHEMISTRY, [PMID:40614527] [10.1016/j.foodchem.2025.145318] |
| 6. Jingnan Zang, Mingmin Qing, Yujie Chi, Yuan Chi. (2025) Ultrasound-Driven Arginine/Lysine to Delay Thermal Induced Aggregation Behavior of Egg White: Temporal Coordination and Improvement of Gel Behavior. FOOD HYDROCOLLOIDS, [PMID:] [10.1016/j.foodhyd.2025.112279] |
| 7. Chenxi Yang, Yingying Yang, Wanzhen Xu, Hao Xiong, Lulu Feng, Yongshu Li, Xiaoyue Xiao, Wudan Cai, Huan Liu, Qin Wu, Jianjun Hou, Xixia Liu. (2026) Tolerance patterns of ochratoxin a nanobody in organic solvents. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, [PMID:41687214] [10.1016/j.saa.2026.127565] |
