CAS No 689-97-4 , but-1-en-3-yne Search by region : France

Name: but-1-en-3-yne
Synonyms: But-1-en-3-yne;but-1-en-3-yne; 689-97-4; Butenyne; 3-Buten-1-yne; Vinylacetylene; Vinyl acetylene; 1-Butenyne; Monovinylacetylene;
CAS Registry Number:689-97-4
Transport: 1954
Melting Point: -118
Flash Point: <-5
Boiling Point: 5
Density: 0.71
Refractive index: 1.408
Safety Statements: Low toxicity by inhalation. Forms explosive peroxides with air or oxygen. Very exothermic decomposition when heated. Reacts explosively when heated with 1,3-butadiene or oxygen. Reacts with silver nitrate to form the explosive silver buten-3-ynide. When heated to decomposition it emits acrid smoke and irritating fumes. See also ACETYLENE COMPOUNDS and ALKYNES.
Flash Point: <-5
EINECS: 211-713-3
Molecular Weight: 52.07456
InchiKey: WFYPICNXBKQZGB-UHFFFAOYSA-N
InChI: InChI=1S/C4H4/c1-3-4-2/h1,4H,2H2
Molecular Formula: C₄H₄
Molecular Structure:

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