19780-25-7

Basic information

• Product Name: 2-ETHYLCROTONALDEHYDE
• 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
• CAS NO: 19780-25-7
• Molecular Formula: C₆H₁₀O
• Molecular Weight: 98.14
• EINECS: 243-299-5
• Mol File: 19780-25-7.mol
• Article Data: 4

Chemical Properties

• Melting Point: -78°C (estimate)
• Boiling Point: 59 °C / 55mmHg
• Flash Point: 31°C
• Appearance: /
• Density: 0,86 g/cm3
• Vapor Pressure: 7.34mmHg at 25°C
• Refractive Index: 1.4475
• Sensitive: Air Sensitive
• CAS DataBase Reference: 2-ETHYLCROTONALDEHYDE(CAS DataBase Reference)
• NIST Chemistry Reference: 2-ETHYLCROTONALDEHYDE(19780-25-7)
• EPA Substance Registry System: 2-ETHYLCROTONALDEHYDE(19780-25-7)

Safety Data

• Hazard Codes: F,Xn
• Statements: 10-36/37/38-52-21
• Safety Statements: 16-26-36-36/37
• RIDADR: 1989
• RTECS: GQ0350000
• TSCA: Yes
• HazardClass: 3
• Hazardous Substances Data: 19780-25-7(Hazardous Substances Data)

Usage

General Description

2-Ethylcrotonaldehyde, also known as 2-methyl-2-propenal, is a chemical compound with the molecular formula C6H10O. It is a colorless to pale yellow liquid with a strong, unpleasant odor. 2-Ethylcrotonaldehyde is used as a flavoring agent in food and beverages, as well as a fragrance ingredient in perfumes and other personal care products. It is also used in the production of pharmaceuticals and other chemicals. The compound is known to be potentially hazardous if ingested, inhaled, or absorbed through the skin, and can cause irritation to the eyes, skin, and respiratory system. It is important to handle 2-ethylcrotonaldehyde with caution and adhere to proper safety procedures when working with this chemical.

InChI:InChI=1/C6H10O/c1-3-6(4-2)5-7/h3,5H,4H2,1-2H3

Upstream product

• 19700-96-0 hexa-1,5-diene-3,4-diol 
• 24253-30-3 5-hexen-3-one 
• 929-05-5 1-ethoxybut-1-ene 
• 75-07-0 acetaldehyde 
• 123-72-8 butyraldehyde 
• 62134-63-8 [2-Chloro-2-ethyl-but-(E)-ylidene]-cyclohexyl-amine 
• 73405-04-6 N-(2-chloro-2-ethyl-1-butylidene)isopropylamine 
• 760-21-4 2-ethyl-1-butene 
• 54305-25-8 2-ethyl-3-hydroxy-butyraldehyde 
• 7553-56-2 iodine 
• 7647-01-0 hydrogenchloride 
• 100392-96-9 3-ethoxy-2-ethyl-butyraldehyde diethylacetal 
• 119353-33-2 (E)-N-(2-Ethyl-2-butenylidene)isopropylamine 
• 119353-35-4 trans-N-(2-Ethyl-2-butenylidene)cyclohexylamine 

Downstream Products

• 97-96-1 2-Ethylbutyraldehyde 
• 101430-93-7 2-ethyl-6-methyl-7ξ-phenyl-hepta-2ξ,4ξ,6-trienal 
• 35081-14-2 diethyl 4-ethylphthalate 

Relevant articles and documents

METHOD FOR PRODUCING CROSS ALDOL CONDENSATE USING AMINE-CARRYING CATALYST

PROBLEM TO BE SOLVED: To provide a method for producing a cross aldol condensate with improved selectivity of a cross aldol condensate, the target material. SOLUTION: A method for producing a cross aldol condensate has a step of performing a cross aldol condensation reaction of different two substrates in the presence of an amine-carrying catalyst with an amine compound immobilized to a carrier, the substrate containing two compounds selected from aldehyde and/or ketone having α hydrogen. SELECTED DRAWING: None COPYRIGHT: (C)2021,JPO&INPIT

OXIDATION OF ALDEHYDES TO α,β-UNSATURATED ALDEHYDES VIA α-CHLOROALDIMINES

The oxidation of aldehydes to α,β-unsaturated aldehydes has been performed by a sequence of reactions involving conversion into aldimines, chlorination at the α-position to form α-chloroaldimines, base-induced dehydrochlorination and hydrolysis.The four-step transformation can be executed without isolation of the intermediates.This method has been applied to the synthesis of an artificial flavor, i.e. 2-butyl-3-phenylpropenal.