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623-47-2

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Identification

Name
Ethyl propiolate
CAS
623-47-2
Synonyms
ACETYLENECARBOXYLIC ACID ETHYL ESTER
EPL
ETHYL ACETYLENECARBOXYLATE
ETHYL PROPIOLATE
PROPARGYLIC ACID ETHYL ESTER
PROPIOLIC ACID ETHYL ESTER
(Ethoxycarbonyl)acetylene
2-Propynoic acid, ethyl ester
Ethyl 2-propynoate
Ethyl propynoate
Ethyl propiolate, (Ethyl acetylenecarboxylate
Ethyl acetylenecarboxylate~Propiolic acid ethyl ester~Propynoic acid ethyl ester
Ethylpropiolate,99%
prop-2-ynoic acid ethyl ester
Carboethoxyacetylene
Ethyl acetylenemonocarboxylate
Ethyl propargylate
Ethyl propiolate ,98%
EINECS(EC#)
210-795-8
Molecular Formula
C5H6O2
MDL Number
MFCD00009184
Molecular Weight
98.1
MOL File
623-47-2.mol

Chemical Properties

Appearance
clear colorless to pale yellow liquid
Melting point 
9°C
mp 
9°C
Boiling point 
120 °C (lit.)
bp 
120 °C(lit.)

density 
0.968 g/mL at 25 °C(lit.)

refractive index 
n20/D 1.412(lit.)

Fp 
74 °F

storage temp. 
2-8°C

solubility 
Miscible with alcohol.
form 
Liquid
color 
Clear colorless to pale yellow
Specific Gravity
0.968
Water Solubility 
miscible
Detection Methods
GC,NMR
Merck 
3846
BRN 
878250
CAS DataBase Reference
623-47-2(CAS DataBase Reference)
NIST Chemistry Reference
Ethyl propiolate(623-47-2)

Safety Data

Hazard Codes 
Xi,F
Risk Statements 
R10:Flammable.
R36/37/38:Irritating to eyes, respiratory system and skin .
R36:Irritating to the eyes.
R11:Highly Flammable.
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
S37/39:Wear suitable gloves and eye/face protection .
S16:Keep away from sources of ignition-No smoking .
S33:Take precautionary measures against static discharges .
S29:Do not empty into drains .
S24:Avoid contact with skin .
S23:Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer) .
RIDADR 
UN 3272 3/PG 3

WGK Germany 
3

Hazard Note 
Irritant
HazardClass 
3
PackingGroup 
II
HS Code 
29161980

Raw materials And Preparation Products

Material Safety Data Sheet(MSDS)

Hazard Information

Hazard
Flammable; lachrymator.
Chemical Properties
clear colorless to pale yellow liquid
Uses
In organic synthesis; peptide coupling reagent.
Uses
(Ethyl propiolate)Halogenated derivatives were used as substrates for direct, asymmetric alkynylation of cyclic ß-ketoesters using chiral phase-transfer catalysts.1 Also employed in a one-pot , four-component synthesis of benzene-1,2,3,5-tetracarboxylates promoted by Ph3P.2
Definition
ChEBI: The ethyl ester of prop-2-ynoic acid.

Spectrum Detail

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