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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≥98% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C,Argon charged Ships Wet ice 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 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504754592 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504754592 |
| Canonical Smiles | C1=CC(=C(C=C1O)C=O)O |
| IUPAC Name | 2,5-dihydroxybenzaldehyde |
| InChIKey | CLFRCXCBWIQVRN-UHFFFAOYSA-N |
| INCHI | 1S/C7H6O3/c8-4-5-3-6(9)1-2-7(5)10/h1-4,9-10H |
| Isomeric SMILES | C1=CC(=C(C=C1O)C=O)O |
| WGK Germany | 3 |
| UN Number | 2734 |
| Molecular Weight | 138.12 |
| Beilstein | 1363961 |
| Reaxy-Rn | 1363961 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1363961&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 | Organic oxygen compounds |
| Class | Organooxygen compounds |
| Subclass | Carbonyl compounds |
| Intermediate Tree Nodes | Aldehydes - Aryl-aldehydes - Benzaldehydes |
| Direct Parent | Hydroxybenzaldehydes |
| Alternative Parents | Hydroquinones Benzoyl derivatives 1-hydroxy-2-unsubstituted benzenoids Vinylogous acids Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Hydroxybenzaldehyde - Hydroquinone - Benzoyl - 1-hydroxy-2-unsubstituted benzenoid - Phenol - Benzenoid - Monocyclic benzene moiety - Vinylogous acid - Organic oxide - Hydrocarbon derivative - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as hydroxybenzaldehydes. These are organic aromatic compounds containing a benzene ring carrying an aldehyde group and a hydroxyl group. |
| External Descriptors | dihydroxybenzaldehyde |
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| Activity Type | Relation | Activity value | Units | Action Type | Journal | PubMed Id | doi | Assay Aladdin ID |
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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 | May 23, 2026 | D109443 | |
| Certificate of Analysis | Apr 07, 2026 | D109443 | |
| Certificate of Analysis | Apr 07, 2026 | D109443 | |
| Certificate of Analysis | Apr 07, 2026 | D109443 | |
| Certificate of Analysis | Jan 21, 2026 | D109443 | |
| Certificate of Analysis | Jan 21, 2026 | D109443 | |
| Certificate of Analysis | Jan 21, 2026 | D109443 | |
| Certificate of Analysis | Jan 21, 2026 | D109443 | |
| Certificate of Analysis | Jan 21, 2026 | D109443 | |
| Certificate of Analysis | Sep 16, 2025 | D109443 | |
| Certificate of Analysis | Sep 08, 2025 | D109443 | |
| Certificate of Analysis | Jun 16, 2025 | D109443 | |
| Certificate of Analysis | Jan 04, 2023 | D109443 |
| Solubility | Soluble in water. |
|---|---|
| Sensitivity | Air sensitive |
| Melt Point(°C) | 98-102°C |
| Molecular Weight | 138.120 g/mol |
| XLogP3 | 1.200 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 1 |
| Exact Mass | 138.032 Da |
| Monoisotopic Mass | 138.032 Da |
| Topological Polar Surface Area | 57.500 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 124.000 |
| 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. Ke Sun, Zhongquan Zhu, Guowei Li, Yizhi Shao, Heng Xia, Hui Deng, Jianjun Zhang, Jiangang Gao, Gaopeng Shi, Yangyang Xu. (2025) Orthogonal polydiacetylene (PDA) derivatives based optical chemsensors for the selective detection of cyanide. DYES AND PIGMENTS, [PMID:] [10.1016/j.dyepig.2025.112809] |
| 2. Jialu Zhang, Yu Fu, Peng Chen, Bowen Liu, Cuiling Ren. (2025) New silicon nanoparticles for “turn-on” detection of salicylaldehyde in food based on ESIPT mechanism. FOOD CHEMISTRY, [PMID:40440837] [10.1016/j.foodchem.2025.144879] |
| 3. Yuan Chen, Ting Yao, Yuetong Mu, Kai Zhao, Kejun Zhong, Rong Yan, Chang He, Pengxiang Jia, Wenyan Zhang. (2025) Self-healing and recyclable thermosetting polyurethanes based on dynamic imine and phenol-carbamate bonds. POLYMER, [PMID:] [10.1016/j.polymer.2025.129528] |