271365

Ethoxyacetylene solution

~40 wt. % in hexanes

• Synonym(s): 1-Ethoxyethyne, Ethoxyethyne, Ethyl ethynyl ether, Ethynyl ethyl ether
• Linear Formula: C₂H₅OC≡CH
• CAS Number: 927-80-0
• Molecular Weight: 70.09
• Beilstein/REAXYS Number: 741882
• MDL number: MFCD00009247
• UNSPSC Code: 12352100
• PubChem Substance ID: 24856434
• NACRES: NA.22

Properties

• form: liquid
• Quality Level: 100
• concentration: ~40 wt. % in hexanes
• refractive index: n20/D 1.378
• density: 0.732 g/mL at 25 °C
• storage temp.: 2-8°C
• SMILES string: CCOC#C
• InChI: 1S/C4H6O/c1-3-5-4-2/h1H,4H2,2H3
• InChI key: WMYNMYVRWWCRPS-UHFFFAOYSA-N

Description

Application

Used with N-vinylamides and triflic anhydride in a direct, three-component synthesis of pyridines. Also used to prepare α,β-unsaturated esters from ketones via a Meyer-Schuster rearrangement.

Safety Information

• pictograms: GHS02,GHS08,GHS07,GHS09
• signalword: Danger
• hcodes: H225,H304,H315,H336,H361,H373,H411
• pcodes: P202 - P210 - P273 - P301 + P310 - P303 + P361 + P353 - P331
• Hazard Classifications: Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 2 - Repr. 2 - Skin Irrit. 2 - STOT RE 2 Inhalation - STOT SE 3
• target_organs: Central nervous system
• Storage Class: 3 - Flammable liquids
• wgk_germany: WGK 3
• flash_point_f: -14.8 °F
• flash_point_c: -26 °C