≥95%(HPLC) 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 4 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
Application：
Croconic acid is used to prepare 1,3-bis-(2-dimethylamino-5-thienyl)croconine by reacting with dimethyl-thiophen-2-yl-amine. It is also used in organic synthesis and employed as a dye for biological research purposes. Further, it is involved in the preparation of ethers such as dimethyl croconate. In addition to this, it acts as a ligand and form coordination complexes with metals such as barium, copper, silver and lead.
| Pubchem Sid | 488190234 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488190234 |
| Canonical Smiles | C1(=C(C(=O)C(=O)C1=O)O)O |
| IUPAC Name | 4,5-dihydroxycyclopent-4-ene-1,2,3-trione |
| InChIKey | RBSLJAJQOVYTRQ-UHFFFAOYSA-N |
| INCHI | 1S/C5H2O5/c6-1-2(7)4(9)5(10)3(1)8/h6-7H |
| Isomeric SMILES | C1(=C(C(=O)C(=O)C1=O)O)O |
| Molecular Weight | 142.07 |
| Beilstein | 8(4)3342 |
| Reaxy-Rn | 2043130 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=2043130&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 acids and derivatives |
| Class | Vinylogous acids |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Vinylogous acids |
| Alternative Parents | Cyclic ketones Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Vinylogous acid - Cyclic ketone - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as vinylogous acids. These are organic compounds containing a hydroxyl group, which is indirectly attached to a carbonyl via an intervening vinyl (>C=C<) moiety. |
| 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 |
|---|---|---|---|
 G2207071 | Certificate of Analysis | Apr 07, 2026 | C153830 |
| C2526240 | Certificate of Analysis | Apr 03, 2025 | C153830 |
| F2110061 | Certificate of Analysis | Mar 04, 2025 | C153830 |
| F2110062 | Certificate of Analysis | Mar 04, 2025 | C153830 |
| C2330535 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| F2309156 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| L2213111 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| L2213277 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| L2213313 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| L2213338 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| L2213339 | Certificate of Analysis | Nov 05, 2022 | C153830 |
| Solubility | Soluble in water and ethanol. |
|---|---|
| Sensitivity | light sensitive |
| Melt Point(°C) | 114℃ |
| Molecular Weight | 142.070 g/mol |
| XLogP3 | -0.800 |
| Hydrogen Bond Donor Count | 2 |
| Hydrogen Bond Acceptor Count | 5 |
| Rotatable Bond Count | 0 |
| Exact Mass | 141.99 Da |
| Monoisotopic Mass | 141.99 Da |
| Topological Polar Surface Area | 91.700 Ų |
| Heavy Atom Count | 10 |
| Formal Charge | 0 |
| Complexity | 246.000 |
| 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. Xianqi Zhu, Lin Li, Jin Tang, Chunyu Yang, Hao Yu, Kunpeng Liu, Ziyan Zheng, Xinggui Gu, Qingsong Yu, Fu-Jian Xu, Zhihua Gan. (2021) Cascade-responsive nano-assembly for efficient photothermal-chemo synergistic inhibition of tumor metastasis by targeting cancer stem cells. BIOMATERIALS, [PMID:34890970] [10.1016/j.biomaterials.2021.121305] |
| 2. Jiamei Han, Judun Zheng, Qian Li, Huanle Hong, Jing Yao, Jiao Wang, Robert Chunhua Zhao. (2024) An Antibody-directed and Immune Response Modifier-augmented Photothermal Therapy Strategy Relieves Aging via Rapid Immune Clearance of Senescent Cells. Aging and Disease, [PMID:38447216] [10.14336/AD.2023.0628-1] |
| 3. Youming Zhu, Xudong Zheng, Guomeng Li, Xi Zhang, Lin Guo, Jinfeng Mei, Zhongyu Li. (2025) Fabrication of photo-responsive chitosan imprinted aerogels for selective adsorption and green desorption of dysprosium ions. PROCESS SAFETY AND ENVIRONMENTAL PROTECTION, [PMID:] [10.1016/j.psep.2025.01.023] |
| 4. Tongtong Xu, Xudong Zheng, Xi Zhang, GuoMeng Li, Jinfeng Mei, Zhongyu Li. (2024) Photothermal Switchable Cellulose Nanocrystals-Graphene Oxide Ionic Imprinted Aerogel for Selective Adsorption and Controlled Desorption of Dysprosium Ions. ACS Sustainable Chemistry & Engineering, [PMID:] [10.1021/acssuschemeng.4c02211] |
