Determine the necessary mass, volume, or concentration for preparing a solution.
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≥98% 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 8 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488201698 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488201698 |
| Canonical Smiles | C1=CC=C2C(=C1)C(=CC(=O)O2)O |
| IUPAC Name | 4-hydroxychromen-2-one |
| InChIKey | VXIXUWQIVKSKSA-UHFFFAOYSA-N |
| INCHI | 1S/C9H6O3/c10-7-5-9(11)12-8-4-2-1-3-6(7)8/h1-5,10H |
| Isomeric SMILES | C1=CC=C2C(=C1)C(=CC(=O)O2)O |
| WGK Germany | 3 |
| RTECS | DJ3100000 |
| Alternate CAS | 22105-09-5,1076-38-6 |
| NSC Number | 11889 |
| MeSH Entry Terms | 4-hydroxycoumarin;4-OH coumarin |
| Molecular Weight | 162.14 |
| Beilstein | 17488 |
| Reaxy-Rn | 129768 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=129768&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 | Phenylpropanoids and polyketides |
| Class | Coumarins and derivatives |
| Subclass | Hydroxycoumarins |
| Intermediate Tree Nodes | Not available |
| Direct Parent | 4-hydroxycoumarins |
| Alternative Parents | 1-benzopyrans Pyranones and derivatives Benzenoids Vinylogous acids Heteroaromatic compounds Lactones Oxacyclic compounds Organooxygen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | 4-hydroxycoumarin - Benzopyran - 1-benzopyran - Pyranone - Pyran - Benzenoid - Heteroaromatic compound - Vinylogous acid - Lactone - Oxacycle - Organoheterocyclic compound - Organic oxygen compound - Hydrocarbon derivative - Organooxygen compound - Organic oxide - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as 4-hydroxycoumarins. These are coumarins that contain one or more hydroxyl groups attached to C4-position the coumarin skeleton. |
| External Descriptors | hydroxycoumarin |
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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 | Dec 15, 2025 | H107607 | |
| Certificate of Analysis | Dec 15, 2025 | H107607 | |
| Certificate of Analysis | Oct 13, 2025 | H107607 | |
| Certificate of Analysis | Oct 13, 2025 | H107607 | |
| Certificate of Analysis | Oct 13, 2025 | H107607 | |
| Certificate of Analysis | Oct 13, 2025 | H107607 | |
| Certificate of Analysis | Jun 09, 2025 | H107607 | |
| Certificate of Analysis | Apr 25, 2024 | H107607 | |
| Certificate of Analysis | Apr 25, 2024 | H107607 | |
| Certificate of Analysis | Apr 25, 2024 | H107607 | |
| Certificate of Analysis | Apr 25, 2024 | H107607 | |
| Certificate of Analysis | Apr 25, 2024 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 | |
| Certificate of Analysis | Dec 18, 2021 | H107607 |
| Melt Point(°C) | 213℃ |
|---|---|
| Molecular Weight | 162.140 g/mol |
| XLogP3 | 1.300 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 3 |
| Rotatable Bond Count | 0 |
| Exact Mass | 162.032 Da |
| Monoisotopic Mass | 162.032 Da |
| Topological Polar Surface Area | 46.500 Ų |
| Heavy Atom Count | 12 |
| Formal Charge | 0 |
| Complexity | 232.000 |
| 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. Kuang Yi, Xia Yunlong, Wang Xing, Rao Qingqing, Yang Shengxiang. (2022) Magnetic Surface Molecularly Imprinted Polymer for Selective Adsorption of 4-Hydroxycoumarin. Frontiers in Chemistry, [PMID:35464201] [10.3389/fchem.2022.862777] |
| 2. Yunchang Fan, Dongxu Cai, Xin Wang, Lei Yang. (2018) Ionic Liquids: Efficient Media for the Lipase-Catalyzed Michael Addition. MOLECULES, 23 (9): (2154). [PMID:30150588] [10.3390/molecules23092154] |
| 3. Yusheng Yuan, Liu Yang, Shaopu Liu, Jidong Yang, Hui Zhang, Jingjing Yan, Xiaoli Hu. (2017) Enzyme-catalyzed Michael addition for the synthesis of warfarin and its determination via fluorescence quenching of l-tryptophan. SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY, [PMID:28095360] [10.1016/j.saa.2017.01.014] |
| 4. Bang-Hua Xie, Zhi Guan, Yan-Hong He. (2012) Promiscuous enzyme-catalyzed Michael addition: synthesis of warfarin and derivatives. JOURNAL OF CHEMICAL TECHNOLOGY AND BIOTECHNOLOGY, 87 (12): (1709-1714). [PMID:] [10.1002/jctb.3830] |
| 5. Ruiling Zhuo, Xiaokang Zhang, Yong Chen, Mengyang Xing, Shiping Tian, Boqiang Li. (2024) 3-hydroxycoumarin effectively inhibits development and pathogenicity by targeting Pempk proteins of Penicillium expansum. POSTHARVEST BIOLOGY AND TECHNOLOGY, [PMID:] [10.1016/j.postharvbio.2024.112987] |
| 6. Jiaxiang Liu, Wenqi Song, Huizhe Niu, Ying Lu, Haiyan Yang, Wentao Li, Yu-zhen Zhao, Zongcheng Miao. (2024) Superior Circularly Polarized Luminescence Brightness Achieved with Chiral Heteroleptic Nine-Coordinate Coumarin-Based Tb3+ Complexes. INORGANIC CHEMISTRY, [PMID:39270127] [10.1021/acs.inorgchem.4c02007] |
| 7. Jiaxiang Liu, Yanan Guo, Qian Zhang, Huizhe Niu, Da Li, Zhenhao Xu, Wentao Li, Yuzhen Zhao, Zongcheng Miao. (2025) Circularly polarized yellow luminescence using novel chiral binary coumarin-based Dy3+ complexes. DYES AND PIGMENTS, [PMID:] [10.1016/j.dyepig.2025.113156] |
| 8. Si-Yue Ma, Lin-Li Yang, Jing-Sha Yang, Ya Xiao, Guo-Qing Wang, Hong-Wu Liu, Yue Ding, Xiang Zhou, Li-Wei Liu, Zhi-Bing Wu, Song Yang. (2025) New coumarin–cinnamic acid hybrids: potent FtsZ inhibitors as alternatives to bactericides for controlling bacterial infection. PEST MANAGEMENT SCIENCE, [PMID:41034602] [10.1002/ps.70272] |