Product Name: ETHYL CROTONATE

Synonyms: 2-Butenoicacid,ethylester;but-2-enoicacidethylester;Ethyl (2E)-2-butenoate;Ethyl 2-butenoate;Ethyl but-2-enoate;Ethylester kyseliny krotonove;ethylesterkyselinykrotonove;TRANS-ETHYL CROTONATE

CAS: 10544-63-5

MF: C6H10O2

MW: 114.14

EINECS: 210-808-7

Product Categories: Pharmaceutical Intermediates

Mol File: 10544-63-5.mol

ETHYL CROTONATE Structure

ETHYL CROTONATE Chemical Properties

Melting point 37.22°C (estimate)

Boiling point 142-143 °C(lit.)

density 0.918 g/mL at 25 °C(lit.)

vapor density 3.9 (vs air)

refractive index n20/D 1.424(lit.)

FEMA 3486 | ETHYL TRANS-2-BUTENOATE

Fp 36 °F

storage temp. Flammables area

form Liquid

color Clear colorless

JECFA Number 1806

Safety Information

Hazard Codes F,C

Risk Statements 11-34

Safety Statements 16-26-36/37/39-45

RIDADR UN 1862 3/PG 2

WGK Germany 2

RTECS GQ3500000

HS Code 29161900

MSDS Information

Provider Language

ACROS English

SigmaAldrich English

ALFA English

ETHYL CROTONATE Usage And Synthesis

Chemical Properties clear colorless liquid

Chemical Properties Ethyl crotonate has a powerful, sour, caramellic-fruity odor.

Occurrence Reported found in Fragaria vesca. Also reported found in guava fruit, guava peel, pineapple, white wine, yellow passion fruit, fresh mango, naranjilla fruit, mussel, loganberry, apple, papaya, concord grape, strawberry, rum, cocoa, plum, kiwifruit and other natural sources.

Preparation By esterification of crotonic acid with ethyl alcohol in the presence of concentrated H2SO4.

Taste threshold values Taste characteristics at 10 ppm: rum, cognac and pungent with caramellic and fruity nuances.

General Description A clear colorless liquid with a pungent odor. Flash point 36°F. Less dense than water and insoluble in water. Vapors heavier than air.

Air & Water Reactions Highly flammable. Insoluble in water.

Reactivity Profile ETHYL CROTONATE is an ester. Esters react with acids to liberate heat along with alcohols and acids. Strong oxidizing acids may cause a vigorous reaction that is sufficiently exothermic to ignite the reaction products. Heat is also generated by the interaction of esters with caustic solutions. Flammable hydrogen is generated by mixing esters with alkali metals and hydrides.

Health Hazard May cause toxic effects if inhaled or absorbed through skin. Inhalation or contact with material may irritate or burn skin and eyes. Fire will produce irritating, corrosive and/or toxic gases. Vapors may cause dizziness or suffocation. Runoff from fire control or dilution water may cause pollution.

Fire Hazard HIGHLY FLAMMABLE: Will be easily ignited by heat, sparks or flames. Vapors may form explosive mixtures with air. Vapors may travel to source of ignition and flash back. Most vapors are heavier than air. They will spread along ground and collect in low or confined areas (sewers, basements, tanks). Vapor explosion hazard indoors, outdoors or in sewers. Runoff to sewer may create fire or explosion hazard. Containers may explode when heated. Many liquids are lighter than water.

Safety Profile Slightly toxic by ingestion. Corrosive. An eye irritant and lachrymator. A flammable liquid. When heated to decomposition it emits acrid smoke and irritating fumes.

ETHYL CROTONATE Preparation Products And Raw materials

Preparation Products Ethyl 4-bromocrotonate