Determine the necessary mass, volume, or concentration for preparing a solution.
≥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 11 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Canonical Smiles | C1=CC2=C(C=C1C(=O)Cl)C(=O)OC2=O |
|---|---|
| IUPAC Name | 1,3-dioxo-2-benzofuran-5-carbonyl chloride |
| InChIKey | NJMOHBDCGXJLNJ-UHFFFAOYSA-N |
| INCHI | 1S/C9H3ClO4/c10-7(11)4-1-2-5-6(3-4)9(13)14-8(5)12/h1-3H |
| Isomeric SMILES | C1=CC2=C(C=C1C(=O)Cl)C(=O)OC2=O |
| WGK Germany | 3 |
| PubChem CID | 70998 |
| UN Number | 3261 |
| Molecular Weight | 210.57 |
| Beilstein | 610823 |
| Reaxy-Rn | 610823 |
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 | Organoheterocyclic compounds |
| Class | Benzofurans |
| Subclass | Benzofuranones |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Phthalic anhydrides |
| Alternative Parents | Isobenzofuranones Dicarboxylic acids and derivatives Benzenoids Carboxylic acid anhydrides Oxacyclic compounds Acyl chlorides Organooxygen compounds Organochlorides Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Phthalic_anhydride - Phthalic anhydride - Isobenzofuranone - Isocoumaran - Dicarboxylic acid or derivatives - Benzenoid - Carboxylic acid anhydride - Acyl chloride - Acyl halide - Carboxylic acid derivative - Oxacycle - Organohalogen compound - Organic oxide - Organochloride - Organooxygen compound - Hydrocarbon derivative - Organic oxygen compound - Aromatic heteropolycyclic compound |
| Description | This compound belongs to the class of organic compounds known as phthalic anhydrides. These are compounds containing a phthalic anhydride moiety (or a derivative thereof), which consists of a benzene fused to a furan-1,3-dione. |
| 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 | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Dec 09, 2025 | T107283 | |
| Certificate of Analysis | Oct 13, 2025 | T107283 | |
| Certificate of Analysis | Oct 13, 2025 | T107283 | |
| Certificate of Analysis | Aug 12, 2025 | T107283 | |
| Certificate of Analysis | May 14, 2025 | T107283 | |
| Certificate of Analysis | May 14, 2025 | T107283 | |
| Certificate of Analysis | May 14, 2025 | T107283 | |
| Certificate of Analysis | May 14, 2025 | T107283 | |
| Certificate of Analysis | May 14, 2025 | T107283 | |
| Certificate of Analysis | Mar 02, 2024 | T107283 | |
| Certificate of Analysis | Mar 02, 2024 | T107283 | |
| Certificate of Analysis | Mar 02, 2024 | T107283 | |
| Certificate of Analysis | Mar 01, 2024 | T107283 | |
| Certificate of Analysis | Dec 08, 2023 | T107283 | |
| Certificate of Analysis | Dec 08, 2023 | T107283 | |
| Certificate of Analysis | Sep 15, 2023 | T107283 | |
| Certificate of Analysis | Sep 15, 2023 | T107283 | |
| Certificate of Analysis | Jun 28, 2021 | T107283 | |
| Certificate of Analysis | Jun 28, 2021 | T107283 | |
| Certificate of Analysis | Jun 28, 2021 | T107283 | |
| Certificate of Analysis | Jun 28, 2021 | T107283 | |
| Certificate of Analysis | Jun 28, 2021 | T107283 |
| Sensitivity | Moisture sensitive |
|---|---|
| Boil Point(°C) | 195 °C/15 mmHg |
| Melt Point(°C) | 66-68°C |
| Molecular Weight | 210.570 g/mol |
| XLogP3 | 1.800 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 1 |
| Exact Mass | 209.972 Da |
| Monoisotopic Mass | 209.972 Da |
| Topological Polar Surface Area | 60.400 Ų |
| Heavy Atom Count | 14 |
| Formal Charge | 0 |
| Complexity | 312.000 |
| 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 |
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| 2. Fang Zhou, Zhenbo Zhao, Deqi Jing, Xinghua Zhang, Peng Wang, Weiguo Su, Shouchun Zhang. (2023) Significantly improving mechanical properties of CF/PAI composites: the influence of interfacial modification coupled with post heat treatment. Journal of Materials Research and Technology-JMR&T, [PMID:] [10.1016/j.jmrt.2023.04.158] |
| 3. Haoji Lao, Nafeesa Mushtaq, Guofei Chen, Hongyu Jiang, Yang Jiao, Anjiang Zhang, Xingzhong Fang. (2020) Transparent polyamide-imide films with high Tg and low coefficient of thermal expansion: Design and synthesis. POLYMER, [PMID:] [10.1016/j.polymer.2020.122889] |
| 4. Nafeesa Mushtaq, Qiaodi Wang, Guofei Chen, Beenish Bashir, Haoji Lao, Yuanming Zhang, Lala Rukh Sidra, Xingzhong Fang. (2020) Synthesis of polyamide-imides with different monomer sequence and effect on transparency and thermal properties. POLYMER, [PMID:] [10.1016/j.polymer.2020.122218] |
| 5. Baojiao Gao, Coco Bi. (2018) Some catalytic characteristics of compositional catalysts of immobilized N-hydroxyphthalimide and metal salts in aerobic oxidation of 1-phenylethanol. CATALYSIS COMMUNICATIONS, [PMID:] [10.1016/j.catcom.2018.06.023] |
| 6. Alvianto Wirasaputra, Xiaohao Yao, Yaming Zhu, Shumei Liu, Yanchao Yuan, Jianqing Zhao, Yi Fu. (2016) Flame-Retarded Epoxy Resins with a Curing Agent of DOPO-Triazine Based Anhydride. MACROMOLECULAR MATERIALS AND ENGINEERING, 301 (8): (982-991). [PMID:] [10.1002/mame.201600094] |
| 7. Zi Long, Meiying Liu, Ke Wang, Fengjie Deng, Dazhuang Xu, Liangji Liu, Yiqun Wan, Xiaoyong Zhang, Yen Wei. (2016) Facile synthesis of AIE-active amphiphilic polymers: Self-assembly and biological imaging applications. Materials Science & Engineering C-Materials for Biological Applications, [PMID:27207057] [10.1016/j.msec.2016.04.081] |
| 8. Qing Wan, Ke Wang, Huilin Du, Hongye Huang, Meiying Liu, Fengjie Deng, Yanfeng Dai, Xiaoyong Zhang, Yen Wei. (2015) A rather facile strategy for the fabrication of PEGylated AIE nanoprobes. Polymer Chemistry, 6 (29): (5288-5294). [PMID:] [10.1039/C5PY00735F] |
| 9. Ao Tang, Zhuo Chen, Huijie Nie, Jie Dong, Xin Zhao, Xiuting Li, Qingsong Xu, Qinghua Zhang. (2025) Polyimide gas separation membrane with an ultrahigh molecule sieving ability by interchain hydrogen-bonding and thermo-oxidative cross-linking networks. SEPARATION AND PURIFICATION TECHNOLOGY, [PMID:] [10.1016/j.seppur.2025.132333] |
| 10. Yu Zhang, Xiaolong Wu, Lian Xia, Jinjun Liu, Lingmin Yao, Hongzhen Xie, Junfei Luo, Zhongbin Pan. (2025) Molecular engineering of polyamide-imide copolymers for high-temperature energy storage. Journal of Materials Chemistry A, [PMID:] [10.1039/D5TA07559A] |
| 11. Zeying Chen, Zeya Li, Shaojun Ma, Xiuli Wang, Xinying Cheng, Xiaoyi Dong, Yunfeng Li, Laizhou Song. (2025) Fabrication of Permeable Polyamide Nanofiltration Membrane With Incorporation of Sulfonated Carbon Quantum Dots and the Employment of Nitrate Rejection. JOURNAL OF APPLIED POLYMER SCIENCE, [PMID:] [10.1002/app.70117] |