≥99% 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.
| Canonical Smiles | C#CC1CC1 |
|---|---|
| IUPAC Name | ethynylcyclopropane |
| InChIKey | NPTDXPDGUHAFKC-UHFFFAOYSA-N |
| INCHI | 1S/C5H6/c1-2-5-3-4-5/h1,5H,3-4H2 |
| Isomeric SMILES | C#CC1CC1 |
| WGK Germany | 2 |
| UN Number | 1993 |
| Molecular Weight | 66.1 |
| Beilstein | 5(4)382 |
| Reaxy-Rn | 1847033 |
| Reaxys-RN_link_address | https://www.reaxys.com/reaxys/secured/hopinto.do?context=S&query=IDE.XRN=1847033&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 | Acetylides |
| Class | Not available |
| Subclass | Not available |
| Intermediate Tree Nodes | Not available |
| Direct Parent | Acetylides |
| Alternative Parents | Unsaturated aliphatic hydrocarbons Acetylenes |
| Molecular Framework | Aliphatic homomonocyclic compounds |
| Substituents | Acetylide - Unsaturated aliphatic hydrocarbon - Unsaturated hydrocarbon - Acetylene - Hydrocarbon - Aliphatic homomonocyclic compound |
| Description | This compound belongs to the class of organic compounds known as acetylides. These are compounds arising by replacement of one or both hydrogen atoms of acetylene (ethyne) by a metal or other cationic group. E.g. NaC#CH monosodium acetylide. By extension, analogous compounds derived from terminal acetylenes, RC#CH. The class is limited here to derivatives of acetylene where the hydrogen atom is replaced with an element with similar or lower electronegativity that carbon. |
| 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 |
|---|---|---|---|
 J2227220 | Certificate of Analysis | May 09, 2026 | C108075 |
| J2227221 | Certificate of Analysis | May 09, 2026 | C108075 |
| J2227223 | Certificate of Analysis | May 09, 2026 | C108075 |
| J2227225 | Certificate of Analysis | May 09, 2026 | C108075 |
| J2227264 | Certificate of Analysis | May 09, 2026 | C108075 |
| C2631046 | Certificate of Analysis | Apr 06, 2026 | C108075 |
| B2428006 | Certificate of Analysis | Dec 16, 2025 | C108075 |
| J2531025 | Certificate of Analysis | Nov 13, 2025 | C108075 |
| I2321018 | Certificate of Analysis | Jun 10, 2025 | C108075 |
| F23051257 | Certificate of Analysis | Mar 04, 2025 | C108075 |
| L2410284 | Certificate of Analysis | Dec 14, 2024 | C108075 |
| J2227218 | Certificate of Analysis | Sep 12, 2022 | C108075 |
| Solubility | Slightly soluble in water. |
|---|---|
| Refractive Index | 1.429 |
| Flash Point(°F) | 1.4 °F |
| Flash Point(°C) | -17 °C |
| Boil Point(°C) | 51°C |
| Molecular Weight | 66.100 g/mol |
| XLogP3 | 1.500 |
| Hydrogen Bond Donor Count | 0 |
| Hydrogen Bond Acceptor Count | 0 |
| Rotatable Bond Count | 0 |
| Exact Mass | 66.047 Da |
| Monoisotopic Mass | 66.047 Da |
| Topological Polar Surface Area | 0.000 Ų |
| Heavy Atom Count | 5 |
| Formal Charge | 0 |
| Complexity | 69.300 |
| 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 |
