303666
2-Butynoic acid
98%
Synonym(s):
Tetrolic acid
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About This Item
Linear Formula:
CH3C≡CCO2H
CAS Number:
Molecular Weight:
84.07
NACRES:
NA.22
PubChem Substance ID:
UNSPSC Code:
12352100
EC Number:
209-695-7
MDL number:
Assay:
98%
Form:
solid
Quality Level
assay
98%
form
solid
mp
78-80 °C (lit.)
functional group
carboxylic acid
SMILES string
CC#CC(O)=O
InChI
1S/C4H4O2/c1-2-3-4(5)6/h1H3,(H,5,6)
InChI key
LUEHNHVFDCZTGL-UHFFFAOYSA-N
General description
The rotational spectrum of 2-butynoic acid was measured by pulsed supersonic-jet Fourier transform microwave spectroscopy.
Application
2-Butynoic acid was employed as synthon in a variety of reactions, including cycloacylation of phenols to flavones and chromones, and cyclization to γ-butyrolactones. It was also used in synthesis of Z-trisubstituted olefins via γ-alkylation.
signalword
Danger
hcodes
Hazard Classifications
Eye Dam. 1 - Skin Corr. 1B
Storage Class
8A - Combustible corrosive hazardous materials
wgk
WGK 3
ppe
Eyeshields, Faceshields, Gloves, type P3 (EN 143) respirator cartridges
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The Journal of Organic Chemistry, 56, 5120-5120 (1991)
I A Mjör et al.
Journal of dental research, 61(8), 967-972 (1982-08-01)
Adhesive bonding of resins to dentin surfaces requires the removal of the layer of debris caused by the cutting. Certain isotonic acidic solutions can do this rapidly. Five solutions were evaluated using cell cultures and pulp studies in monkeys. At
S Parveen et al.
Chemical communications (Cambridge, England), (12)(12), 1531-1533 (2005-03-17)
The application of FTIR spectroscopy to concentrated solutions of tetrolic acid shows, for the first time, a direct relationship between molecular self association in solution and H-bonded motifs in the subsequently crystallised solid phases.
Global Trade Item Number
| SKU | GTIN |
|---|---|
| 303666-1G | 04061826666470 |
| 303666-5G | 04061826666487 |