≥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 1 peer-reviewed publications across chromatography, organic synthesis, and cross-coupling reactions.
| Pubchem Sid | 488184171 |
|---|---|
| Pubchem Sid Url | https://pubchem.ncbi.nlm.nih.gov/substance/488184171 |
| Kanonisches Lächeln | CC#CC(=O)O |
| IUPAC Name | but-2-ynoic acid |
| InChIKey | LUEHNHVFDCZTGL-UHFFFAOYSA-N |
| INCHI | 1S/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6) |
| Isomere SMILES | CC#CC(=O)O |
| WGK Deutschland | 3 |
| UN-Nummer | 3261 |
| Molekulargewicht | 84.07 |
| Beilstein | 2(4)1690 |
| Reaxy-Rn | 1740205 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1740205&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 | Lipids and lipid-like molecules |
| Klasse | Fatty Acyls |
| Subclass | Fatty acids and conjugates |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Straight chain fatty acids |
| Alternative Parents | Unsaturated fatty acids Monocarboxylic acids and derivatives Carboxylic acids Organic oxides Hydrocarbon derivatives Carbonyl compounds |
| Molecular Framework | Aliphatic acyclic compounds |
| Substituents | Unsaturated fatty acid - Straight chain fatty acid - Monocarboxylic acid or derivatives - Carboxylic acid - Carboxylic acid derivative - Organic oxygen compound - Organic oxide - Hydrocarbon derivative - Organooxygen compound - Carbonyl group - Aliphatic acyclic compound |
| Beschreibung | This compound belongs to the class of organic compounds known as straight chain fatty acids. These are fatty acids with a straight aliphatic chain. |
| 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 |
|---|---|---|---|
 C2310761 | Certificate of Analysis | Sep 04, 2026 | B113384 |
| C2310976 | Certificate of Analysis | Sep 04, 2026 | B113384 |
| C2310981 | Certificate of Analysis | Sep 03, 2026 | B113384 |
| H2525028 | Certificate of Analysis | Sep 01, 2025 | B113384 |
| H2130386 | Certificate of Analysis | Mar 04, 2025 | B113384 |
| H2130384 | Certificate of Analysis | Mar 04, 2025 | B113384 |
| J2218434 | Certificate of Analysis | Jul 09, 2024 | B113384 |
| J2218437 | Certificate of Analysis | Jul 09, 2024 | B113384 |
| J2218440 | Certificate of Analysis | Jul 09, 2024 | B113384 |
| C2514663 | Certificate of Analysis | Jul 01, 2024 | B113384 |
| C2514664 | Certificate of Analysis | Jul 01, 2024 | B113384 |
| G1831116 | Certificate of Analysis | Nov 08, 2023 | B113384 |
| G1831117 | Certificate of Analysis | Feb 16, 2022 | B113384 |
| Siedepunkt (°C) | 203°C |
|---|---|
| Schmelzpunkt (°C) | 78-80°C |
| Molekulargewicht | 84.070 g/mol |
| XLogP3 | 0.800 |
| Hydrogen Bond Donor Count | 1 |
| Hydrogen Bond Acceptor Count | 2 |
| Rotatable Bond Count | 0 |
| Exact Mass | 84.0211 Da |
| Monoisotopic Mass | 84.0211 Da |
| Topological Polar Surface Area | 37.300 Ų |
| Heavy Atom Count | 6 |
| Formal Charge | 0 |
| Complexity | 112.000 |
| 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. Le Luo, Xiaoming Mo, Yusheng Song, Zhentao Du, Sheng Cao, Jinju Zheng, Bingsuo Zou, Jialong Zhao. (2026) Enhanced stability and ultraviolet photodetection performance in CsPbBr 3 nanoplatelets via FA doping. Nanoscale, [PMID:41979073] [10.1039/D5NR04973C] |
