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Merck
CN

P51400

Propiolic acid

95%

Synonym(s):

Acetylenecarboxylic acid, Propynoic acid

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About This Item

Linear Formula:
HC≡CCOOH
CAS Number:
471-25-0
Molecular Weight:
70.05
Beilstein:
878176
EC Number:
207-437-8
MDL number:
MFCD00004360
UNSPSC Code:
12352100
PubChem Substance ID:
24898598
NACRES:
NA.22

Key Documents

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Quality Level

200

Assay

95%

impurities

≤6.0% acetic acid

refractive index

n20/D 1.431 (lit.)

bp

102 °C/200 mmHg (lit.)

mp

16-18 °C (lit.)

density

1.138 g/mL at 25 °C (lit.)

storage temp.

2-8°C

SMILES string

OC(=O)C#C

InChI

1S/C3H2O2/c1-2-3(4)5/h1H,(H,4,5)

InChI key

UORVCLMRJXCDCP-UHFFFAOYSA-N

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Related Categories

Application

Reagent employed in the synthesis of transition metal complexes, haloalkyl propiolates, and halopropenoates.

Signal Word

Danger

Hazard Statements

H226,H301,H310,H314

Hazard Classifications

Acute Tox. 2 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Flam. Liq. 3 - Skin Corr. 1B

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

136.4 °F - closed cup

Flash Point(C)

58 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Information

危险化学品
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Certificates of Analysis (COA)

Lot/Batch Number
STBL0584
STBK7647
STBK1697
0000111256
STBJ9377

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The Journal of Organic Chemistry, 57, 709-709 (1992)
Tetrahedron, 49, 4229-4229 (1993)
Tetrahedron, 48, 3413-3413 (1992)
Journal of Organometallic Chemistry, 456, 271-271 (1993)
Søren Kramer et al.
Organic letters, 11(18), 4208-4211 (2009-08-25)
A highly regioselective hydroamination of unsymmetrical electron-poor and electron-rich alkynes with anilines catalyzed by Au(I) under mild conditions is reported. In addition, applications toward indole syntheses are presented including an example of a one-pot synthesis from a nonfunctionalized aniline.
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