≥99.5% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Room temperature,Argon charged 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 3 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Kanonisches Lächeln | O=C1OC(=O)C2=C1C=CC(=C2)C#CC1=CC=CC=C1 |
|---|---|
| IUPAC Name | 5-(Phenylethynyl)-2-benzofuran-1,3-dione |
| InChIKey | UPGRRPUXXWPEMV-UHFFFAOYSA-N |
| INCHI | InChI=1S/C16H8O3/c17-15-13-9-8-12(10-14(13)16(18)19-15)7-6-11-4-2-1-3-5-11/h1-5,8-10H |
| Isomere SMILES | C1=CC=C(C=C1)C#CC2=CC3=C(C=C2)C(=O)OC3=O |
| Molekulargewicht | 248.24 |
| Reaxy-Rn | 9631246 |
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 |
| Klasse | Benzofurans |
| Subclass | Benzofuranones |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Phthalic anhydrides |
| Alternative Parents | Isobenzofuranones Dicarboxylic acids and derivatives Benzene and substituted derivatives Carboxylic acid anhydrides Oxacyclic compounds Organooxygen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic heteropolycyclic compounds |
| Substituents | Phthalic anhydride - Phthalic_anhydride - Isobenzofuranone - Isocoumaran - Benzenoid - Dicarboxylic acid or derivatives - Monocyclic benzene moiety - Carboxylic acid anhydride - Oxacycle - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic heteropolycyclic compound |
| Beschreibung | 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 | Datum | Artikel |
|---|---|---|---|
 E2618364 | Certificate of Analysis | Apr 22, 2026 | P1507238 |
| E2618371 | Certificate of Analysis | Apr 22, 2026 | P1507238 |
| E2618377 | Certificate of Analysis | Apr 22, 2026 | P1507238 |
| Empfindlichkeit | Hygroscopic |
|---|---|
| Siedepunkt (°C) | 466.9°C at 760 mmHg |
| Schmelzpunkt (°C) | 149-154℃ |
| 1. Lixue Zhu, Zilong Zheng, Wenhan Xu, Yadong Tang, Hongyan Yao, Yunhe Zhang, Zhenhua Jiang. (2022) Optimizing high-temperature capacitive energy storage performance by constructing crosslinked structure in self-crosslinkable polyetherimides. Materials Today Energy, [PMID:] [10.1016/j.mtener.2022.101145] |
| 2. Kaiyuan You, Hongyan Yao, Yunhe Zhang, Yu Liu, Shanyou Liu, Ying Song, Shaowei Guan. (2015) Phenylethynyl- and naphthylethynyl-terminated hyperbranched polyimides with low melt viscosity. HIGH PERFORMANCE POLYMERS, [PMID:] [10.1177/0954008315570398] |
| 3. Yingying Zheng, Weihao Dai, Jian Wang, Yifei Zhang, Biyun Peng, Fangfang Wu, Yunchuan Xie, Sen Liang, Di Zhou. (2025) Spatial-conformational locking of π-conjugated pathways enables 150–200 °C polyimides capacitive energy storage. CHEMICAL ENGINEERING JOURNAL, [PMID:] [10.1016/j.cej.2025.171928] |
