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Basic Information
CAS No.: 19780-25-7
Name: 2-ETHYLCROTONALDEHYDE
Article Data: 15
Molecular Structure:
Molecular Structure of 19780-25-7 (2-ETHYLCROTONALDEHYDE)
Formula: C6H10 O
Molecular Weight: 98.1448
Synonyms: Crotonaldehyde,2-ethyl- (6CI,7CI,8CI); Crotonaldehyde, a-ethyl- (4CI); 2-Ethyl-2-butenal;2-Ethylcrotonaldehyde; a-Ethyl-2-butenal
EINECS: 243-299-5
Density: 0.829 g/cm3
Melting Point: -78°C (estimate)
Boiling Point: 136.5 °C at 760 mmHg
Flash Point: 28.3 °C
Hazard Symbols: F,Xn
Risk Codes: 10-36/37/38
Safety: Moderately toxic by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES and ESTERS.
PSA: 17.07000
LogP: 1.54160
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Chemistry

Chemistry informtion about 2-Ethylcrotonaldehyde (CAS NO.19780-25-7) is:
IUPAC Name: (E)-2-Ethylbut-2-Enal
Synonyms: (2E)-2-Ethyl-2-Butenal ; 2-Ethyl-2-Butena ; 2-Ethyl-But-2-Enal ; 2-Ethyl-Crotonaldehyd ; CH3CH=C(C2H5)CHO ; Crotonaldehyde, 2-Ethyl- ; Ethylcrotonaldehyde ; 2-Ethylcrotonaldehyde 
MF: C6H10O
MW: 98.14
EINECS: 243-299-5 
Density: 0.829 g/cm3
Flash Point: 28.3 °C
Boiling Point: 136.5 °C at 760 mmHg
Vapour Pressure: 7.34 mmHg at 25°C 
Enthalpy of Vaporization: 37.39 kJ/mol
Following is the molecular structure of 2-Ethylcrotonaldehyde (CAS NO.19780-25-7) is:

Toxicity Data With Reference

Organism Test Type Route Reported Dose (Normalized Dose) Effect Source
rabbit LD50 skin 500uL/kg (0.5mL/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.
rat LD50 oral 2600uL/kg (2.6mL/kg)   Toxicology and Applied Pharmacology. Vol. 28, Pg. 313, 1974.

Consensus Reports

Reported in EPA TSCA Inventory.

Safety Profile

Moderately toxic by ingestion and skin contact. When heated to decomposition it emits acrid smoke and irritating fumes. See also ALDEHYDES and ESTERS. 
Safty information about 2-Ethylcrotonaldehyde (CAS NO.19780-25-7) is:
Risk Statements:
R10:Flammable. 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements:
S16:Keep away from sources of ignition. 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.
RIDADR: 1989
RTECS: GQ0350000