2-Propynoic acid, ethyl ester
Ethyl propiolate
CAS: 623-47-2
Molecular Formula: C5H6O2
2-Propynoic acid, ethyl ester - Names and Identifiers
| Name | Ethyl propiolate |
| Synonyms | EPL Ethyl propynoate Ethyl propiolate ETHYL PROPIOLATE Ethyl 2-propynoate ethyl prop-2-ynoate (Ethoxycarbonyl)acetylene ETHYL ACETYLENECARBOXYLATE 2-Propynoic acid, ethyl ester Propiolic acid ethyl ester) ACETYLENECARBOXYLIC ACID ETHYL ESTER Ethyl propiolate, (Ethyl acetylenecarboxylate Ethyl acetylenecarboxylate~Propiolic acid ethyl ester~Propynoic acid ethyl ester |
| CAS | 623-47-2 |
| EINECS | 210-795-8 |
| InChI | InChI=1/C5H6O2/c1-3-5(6)7-4-2/h1H,4H2,2H3 |
2-Propynoic acid, ethyl ester - Physico-chemical Properties
| Molecular Formula | C5H6O2 |
| Molar Mass | 98.1 |
| Density | 0.968 g/mL at 25 °C (lit.) |
| Melting Point | 9°C |
| Boling Point | 120 °C (lit.) |
| Flash Point | 74°F |
| Water Solubility | miscible |
| Solubility | Miscible with alcohol. |
| Vapor Presure | 15.5mmHg at 25°C |
| Appearance | Liquid |
| Specific Gravity | 0.968 |
| Color | Clear colorless to pale yellow |
| Merck | 14,3846 |
| BRN | 878250 |
| Storage Condition | 2-8°C |
| Refractive Index | n20/D 1.412(lit.) |
| MDL | MFCD00009184 |
| Physical and Chemical Properties | Character: colorless liquid. boiling point 119 ℃(0.1MPa,745mmHg relative density 0.9788 refractive index 1.4133 soluble in ethanol, ether and chloroform. |
| Use | Used as a reagent for organic synthesis |
2-Propynoic acid, ethyl ester - Risk and Safety
| Risk Codes | R10 - Flammable R36/37/38 - Irritating to eyes, respiratory system and skin. R36 - Irritating to the eyes R11 - Highly Flammable |
| Safety Description | 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. S33 - Take precautionary measures against static discharges. S29 - Do not empty into drains. S24 - Avoid contact with skin. S23 - Do not breathe vapour. |
| UN IDs | UN 3272 3/PG 3 |
| WGK Germany | 3 |
| HS Code | 29161980 |
| Hazard Note | Irritant |
| Hazard Class | 3 |
| Packing Group | II |
2-Propynoic acid, ethyl ester - Introduction
It is miscible with water and soluble in most organic solvents.
Last Update：2022-10-16 17:27:20
2-Propynoic acid, ethyl ester - Reference Information
| NIST chemical information | information provided by: webbook.nist.gov (external link) |
| Introduction | ethyl propiolate is an important organic chemical raw materials and pharmaceutical intermediates. In the prior art, propargyl alcohol is used as a raw material, and propargyl acid ester is obtained by oxidation to propargyl acid followed by esterification. |
| Use | ethyl propiolate is used in the synthesis of substituted anthraquinones. It can also be used for the preparation of pyrazolo [1,5-a] pyridine anti-inflammatory drugs. used as a reagent for organic synthesis used as a laboratory reagent, without mass production. as a chiral phase transfer catalyst under the action of cyclic? -Substrate for direct, asymmetric alkynylation of ketoesters; One-pot method for Ph3P-promoted benzene -1,2,3, 5-tetracarboxylic acid esters, four-component synthesis |
| Application | ethyl propiolate is an important organic chemical raw materials and pharmaceutical intermediates. In the prior art, propargyl alcohol is used as a raw material, and propargyl acid ester is obtained by oxidation to propargyl acid followed by esterification. |
Last Update：2024-04-10 22:29:15
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View History
2-Propynoic acid, ethyl ester
顺-3-氨基环己甲酸
三乙氧基烯丙基硅烷
3-羟基-N-(1-萘基)-2-萘甲酰胺
4-ANISIDINE-2,5-DISULPHONIC ACID
c.i. 11680
(+)-4,5-双[羟基(二苯基)甲基]-2-甲基-2-苯基-1,3-二氧戊环
顺-3-氨基环己甲酸
三乙氧基烯丙基硅烷
3-羟基-N-(1-萘基)-2-萘甲酰胺
4-ANISIDINE-2,5-DISULPHONIC ACID
c.i. 11680
(+)-4,5-双[羟基(二苯基)甲基]-2-甲基-2-苯基-1,3-二氧戊环