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303666

2-Butynoic acid

Name: 2-Butynoic acid
Brand: ALDRICH

98%

Synonym(s):

Tetrolic acid

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About This Item

Linear Formula:

CH₃C≡CCO₂H

CAS Number:

590-93-2

Molecular Weight:

84.07

NACRES:

NA.22

PubChem Substance ID:

24858137

UNSPSC Code:

12352100

EC Number:

209-695-7

MDL number:

MFCD00004363

Assay:

98%

Form:

solid

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Properties

Quality Segment

100

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

Description

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.

pictograms

GHS05

signalword

Danger

hcodes

H314

pcodes

P260 - P280 - P303 + P361 + P353 - P304 + P340 + P310 - P305 + P351 + P338 - P363

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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