Determine the necessary mass, volume, or concentration for preparing a solution.
≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
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 2 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488201559 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488201559 |
| Canonical Smiles | C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)S(=O)(=O)O.O.O.O.O |
| IUPAC Name | naphthalene-1,5-disulfonic acid;tetrahydrate |
| InChIKey | ZLBLYGIIADHDKG-UHFFFAOYSA-N |
| INCHI | 1S/C10H8O6S2.4H2O/c11-17(12,13)9-5-1-3-7-8(9)4-2-6-10(7)18(14,15)16;;;;/h1-6H,(H,11,12,13)(H,14,15,16);4*1H2 |
| Isomeric SMILES | C1=CC2=C(C=CC=C2S(=O)(=O)O)C(=C1)S(=O)(=O)O.O.O.O.O |
| WGK Germany | 3 |
| UN Number | 2585 |
| Molecular Weight | 360.36 |
| Beilstein | 11212 |
| Reaxy-Rn | 13669083 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=13669083&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 Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homopolycyclic compounds |
| Substituents | 1-naphthalene sulfonate - 1-naphthalene sulfonic acid or derivatives - 1-sulfo,2-unsubstituted aromatic compound - Arylsulfonic acid or derivatives - Sulfonyl - Organosulfonic acid - Organosulfonic acid or derivatives - Organic sulfonic acid or derivatives - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organosulfur 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 |
|---|---|---|---|
| Certificate of Analysis | Oct 13, 2025 | N105697 | |
| Certificate of Analysis | Oct 13, 2025 | N105697 | |
| Certificate of Analysis | Mar 04, 2025 | N105697 | |
| Certificate of Analysis | Mar 08, 2024 | N105697 | |
| Certificate of Analysis | Apr 14, 2023 | N105697 | |
| Certificate of Analysis | Apr 14, 2023 | N105697 | |
| Certificate of Analysis | Apr 14, 2023 | N105697 | |
| Certificate of Analysis | Apr 14, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 | |
| Certificate of Analysis | Jan 13, 2023 | N105697 |
| Solubility | Soluble in water |
|---|---|
| Melt Point(°C) | 163.3°C |
| Molecular Weight | 360.400 g/mol |
| XLogP3 | |
| Hydrogen Bond Donor Count | 6 |
| Hydrogen Bond Acceptor Count | 10 |
| Rotatable Bond Count | 2 |
| Exact Mass | 360.018 Da |
| Monoisotopic Mass | 360.018 Da |
| Topological Polar Surface Area | 130.000 Ų |
| Heavy Atom Count | 22 |
| Formal Charge | 0 |
| Complexity | 449.000 |
| 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 | 5 |
| 1. Wenmin Li, Tingting Xu, Fangmeng Sheng, Yue Wang, Yifan Li, Yuan Xia, Bin Wu, Xingya Li, Tongwen Xu. (2024) UiO-66 membranes with confined naphthalene disulfonic acid for selective monovalent ion separation. JOURNAL OF MEMBRANE SCIENCE, [PMID:] [10.1016/j.memsci.2024.122829] |
| 2. Guowei Chen, Yang He, Shen Xiang, Yiping Zhao, Li Chen. (2026) Marangoni-driven assembly of HOF-PDMS composite membranes with enhanced CO2/O2 separation performance. CHEMICAL ENGINEERING SCIENCE, [PMID:] [10.1016/j.ces.2026.124180] |