≥97% for sensitive chromatographic and analytical workflows requiring minimal baseline interference.
Store at 2-8°C 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 0 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 504767859 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/504767859 |
| Canonical Smiles | COC(=O)C1=CC(=CC(=C1)C#C)C(=O)OC |
| IUPAC Name | dimethyl 5-ethynylbenzene-1,3-dicarboxylate |
| InChIKey | RSSODPUFUQKWIK-UHFFFAOYSA-N |
| INCHI | 1S/C12H10O4/c1-4-8-5-9(11(13)15-2)7-10(6-8)12(14)16-3/h1,5-7H,2-3H3 |
| Isomeric SMILES | COC(=O)C1=CC(=CC(=C1)C#C)C(=O)OC |
| Molecular Weight | 218.21 |
| Reaxy-Rn | 8620969 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=8620969&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 | Benzenoids |
| Class | Benzene and substituted derivatives |
| Subclass | Benzoic acids and derivatives |
| Intermediate Tree Nodes | Phthalic acid and derivatives - Phthalate esters |
| Direct Parent | m-Phthalate esters |
| Alternative Parents | M-phthalic acid and derivatives Benzoic acid esters Benzoyl derivatives Dicarboxylic acids and derivatives Methyl esters Acetylides Organooxygen compounds Organic oxides Hydrocarbon derivatives |
| Molecular Framework | Aromatic homomonocyclic compounds |
| Substituents | Meta-phthalic acid ester - Meta_phthalic_acid - Benzoate ester - Benzoyl - Dicarboxylic acid or derivatives - Methyl ester - Carboxylic acid ester - Acetylide - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Aromatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as m-phthalate esters. These are ester derivatives of m-phthalic acids, which are based on a benzene 1,3-dicarboxylic acid skeleton. |
| 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 |
|---|---|---|---|
 C2623031 | Certificate of Analysis | Mar 26, 2026 | B300744 |
| A2214355 | Certificate of Analysis | Oct 12, 2024 | B300744 |
| A2214356 | Certificate of Analysis | Oct 12, 2024 | B300744 |
| A2214357 | Certificate of Analysis | Oct 12, 2024 | B300744 |
| A2214358 | Certificate of Analysis | Oct 12, 2024 | B300744 |
| A2214359 | Certificate of Analysis | Oct 12, 2024 | B300744 |
| Melt Point(°C) | 125 - 130 °C |
|---|---|
| Molecular Weight | 218.200 g/mol |
| XLogP3 | 1.900 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 4 |
| Rotatable Bond Count | 5 |
| Exact Mass | 218.058 Da |
| Monoisotopic Mass | 218.058 Da |
| Topological Polar Surface Area | 52.600 Ų |
| Heavy Atom Count | 16 |
| Formal Charge | 0 |
| Complexity | 301.000 |
| 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 |
