ChemicalBook > CAS DataBase List > 2-ETHYL-2-HEXENAL

2-ETHYL-2-HEXENAL

Product Name
2-ETHYL-2-HEXENAL
CAS No.
645-62-5
Chemical Name
2-ETHYL-2-HEXENAL
Synonyms
CKB1364;2-Ethylhexenal;2-ETHYL-2-HEXEL;2-ethyl-2-hexena;2-ethyl-2-hexanal;2-ETHYL-2-HEXENAL;α-Ethyl-2-hexenal;2-ethylhex-2-enal;2-Hexenal,2-ethyl-;3-Formylhept-3-ene
CBNumber
CB4196026
Molecular Formula
C8H14O
Formula Weight
126.2
MOL File
645-62-5.mol
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2-ETHYL-2-HEXENAL Property

Melting point:
3.5°C (estimate)
Boiling point:
175°C(lit.)
Density 
0,85 g/cm3
refractive index 
1.4490 to 1.4530
FEMA 
4612 | 2-ETHYL-2-HEXENAL
Flash point:
68°C
storage temp. 
Inert atmosphere,Store in freezer, under -20°C
Odor
powerful odor
Appearance
Light yellow to yellow Liquid
biological source
botanical
Stability:
Stable. Combustible. Incompatible with strong oxidizing agents.
InChI
InChI=1S/C8H14O/c1-3-5-6-8(4-2)7-9/h6-7H,3-5H2,1-2H3
InChIKey
PYLMCYQHBRSDND-UHFFFAOYSA-N
SMILES
C(=O)C(CC)=CCCC
LogP
2.66
EPA Substance Registry System
2-Ethyl-2-hexenal (645-62-5)
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Safety

Risk Statements 
36/37/38
Safety Statements 
26-36/37/39
RIDADR 
1760
RTECS 
MP6300000
Hazardous Substances Data
645-62-5(Hazardous Substances Data)
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Hazard and Precautionary Statements (GHS)

Symbol(GHS)
Signal word
Danger
Hazard statements

H315Causes skin irritation

H317May cause an allergic skin reaction

H318Causes serious eye damage

H412Harmful to aquatic life with long lasting effects

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P264Wash hands thoroughly after handling.

P264Wash skin thouroughly after handling.

P273Avoid release to the environment.

P280Wear protective gloves/protective clothing/eye protection/face protection.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich
Product number
W461216
Product name
2-Ethyl-2-hexenal
Purity
mixture of isomers, natural (US), ≥95%
Packaging
1 unit
Price
$59.09
Updated
2025/07/31
Sigma-Aldrich
Product number
W461216
Product name
2-Ethyl-2-hexenal
Purity
mixture of isomers, natural (US), ≥95%
Packaging
1 unit
Price
$59.09
Updated
2025/07/31
Sigma-Aldrich
Product number
W461216
Product name
2-Ethyl-2-hexenal
Purity
mixture of isomers, natural (US), ≥95%
Packaging
100G
Price
$134.9
Updated
2025/07/31
Sigma-Aldrich
Product number
W461216
Product name
2-Ethyl-2-hexenal
Purity
mixture of isomers, natural (US), ≥95%
Packaging
1KG
Price
$1030
Updated
2025/07/31
Sigma-Aldrich
Product number
W461216
Product name
2-Ethyl-2-hexenal
Purity
mixture of isomers, natural (US), ≥95%
Packaging
SAMPLE-K
Price
$62.2
Updated
2023/06/20
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2-ETHYL-2-HEXENAL Chemical Properties,Usage,Production

Chemical Properties

colourless liquid with a strong smell

Chemical Properties

2-Ethyl-3-propyl acrolein is a colorless or yellowish liquid with a sharp, powerful, irritating odor

Uses

Insecticide, organic synthesis (intermediate), warning agents, and leak detectors.

Definition

ChEBI: 2-ethyl-2-hexenal is a monounsaturated fatty aldehyde that is hex-2-enal substituted by an ethyl group at position 2. It has a role as a plant metabolite, a human metabolite and a flavouring agent. It is a monounsaturated fatty aldehyde and an enal.

Synthesis Reference(s)

Tetrahedron Letters, 15, p. 959, 1974 DOI: 10.1016/S0040-4039(01)82378-9

General Description

Yellow liquid. Floats on water.

Air & Water Reactions

Insoluble in water.

Reactivity Profile

2-ETHYL-2-HEXENAL is an aldehyde. Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. 2-ETHYL-2-HEXENAL will react with oxidants.

Hazard

Toxic by inhalation and ingestion; strong irritant.

Health Hazard

Vapor is irritating. Contact produces skin and eye irritation.

Flammability and Explosibility

Not classified

Potential Exposure

Those workers involved in organic synthesis operations and use of this flammable and toxic aldehyde warning agent.v

Shipping

UN1988 Aldehydes, flammable, toxic, n.o.s., Hazard Class: 3; Labels: 3-Flammable liquid, 6.1-Poisonous materials, Technical Name Required

Incompatibilities

Aldehydes are frequently involved in self-condensation or polymerization reactions. These reactions are exothermic; they are often catalyzed by acid. Aldehydes are readily oxidized to give carboxylic acids. Flammable and/or toxic gases are generated by the combination of aldehydes with azo, diazo compounds, dithiocarbamates, nitrides, and strong reducing agents. Aldehydes can react with air to give first peroxo acids, and ultimately carboxylic acids. These autoxidation reactions are activated by light, catalyzed by salts of transition metals, and are autocatalytic (catalyzed by the products of the reaction). The addition of stabilizers (antioxidants) to shipments of aldehydes retards autoxidation. Incompatible with oxidizers (chlorates, nitrates, peroxides, permanganates, perchlorates, chlorine, bromine, fluorine, etc.); contact may cause fires or explosions. Keep away from alkaline materials, strong bases, strong acids, oxoacids, epoxides, caustics, ammonia, and amines

Waste Disposal

Incineration, or dissolve in flammable solvent and spray into incinerator containing afterburner

2-ETHYL-2-HEXENAL Preparation Products And Raw materials

Raw materials

Preparation Products

2-Ethylhexanoic acid
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2-ETHYL-2-HEXENAL Suppliers

China 75 France 1 Germany 3 India 2 Japan 1 United Kingdom 1 United States 19 USA 1 Global 103
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View Lastest Price from 2-ETHYL-2-HEXENAL manufacturers

Hebei Chuanghai Biotechnology Co., Ltd
Product
2-ETHYL-2-HEXENAL 645-62-5
Price
US $0.00-0.00/KG
Min. Order
1KG
Purity
99%
Supply Ability
500000kg
Release date
2024-10-28
Zibo Hangyu Biotechnology Development Co., Ltd
Product
2-ETHYL-2-HEXENAL 645-62-5
Price
US $70.00-700.00/kg
Min. Order
10kg
Purity
0.99
Supply Ability
20tons
Release date
2023-11-08
Career Henan Chemical Co
Product
2-ETHYL-2-HEXENAL 645-62-5
Price
US $1.00/KG
Min. Order
1KG
Purity
95-99%
Supply Ability
1ton
Release date
2019-12-31

645-62-5, 2-ETHYL-2-HEXENALRelated Search:

Diethylzinc Cyclobutanone Acrolein Allyl alcohol 2-Ethyl-2-hexenal semicarbazone 2-Isopropyl-5-methyl-2-hexenal 2-ETHYL-2-HEXENAL,TRANS-2-ETHYL-2-HEXENAL 2-Ethyl-2-hexenal phenyl hydrazone 4-(2,4,6-CYCLOHEPTATRIENYL)-2-ETHYL-2-HEXENAL(2,4-DINITROPHENYL)HYDRAZONE 2-allyl-2-ethylhex-3-enal

  • 2-ETHYL-3-PROPYLACROLEIN
  • 2-ETHYL-2-HEXEN-1-AL
  • 2-ETHYL-2-HEXENAL
  • TIMTEC-BB SBB008156
  • TRANS-2-ETHYL-2-HEXENAL
  • (2E)-2-Ethyl-2-hexenal
  • 2-ethyl-2-hexanal
  • 2-ethyl-2-hexena
  • 2-ethyl-3-propyl-acrolei
  • CKB1364
  • α-Ethyl-2-hexenal
  • α-Ethyl-β-propylacrolein
  • 2-Ethyl-3-propylacroleine
  • ETHYL-2-HEXENE-1-ALDEHYDE
  • ETHYL-2-HEXANE-1-ALDEHYDE
  • 2-Ethyl-2-hexenal (cis- and trans- Mixture)
  • (E)-2-ethylhex-2-enal
  • 2-Ethyl-2-hexenal (<i>cis</i>- and <i>trans</i>- mixture)
  • 2-ETHYL-2-HEXEL
  • 2-ethyl-3-propylacrylaldehyde
  • 2-ethylhex-2-en-1-al
  • 2-ethylhex-2-enal
  • 2-Ethylhexenal
  • 2-Hexenal,2-ethyl-
  • 3-Formylhept-3-ene
  • Acrolein, 2-ethyl-3-propyl-
  • alpha-Ethyl-2-hexenal
  • alpha-Ethyl-beta-n-propylacrolein
  • alpha-Ethyl-beta-propylacrolein
  • 2-Ethyl-2-hexenal(cis-andtrans-mixture)&gt
  • Gabapentine Impurity 18Q: What is Gabapentine Impurity 18 Q: What is the CAS Number of Gabapentine Impurity 18 Q: What is the storage condition of Gabapentine Impurity 18
  • 2-Ethyl-2-Hexanal(Cis Trans Mixture)
  • 645-62-5
  • CH3CH22CHCC2H5CHO
  • C3H7CHCC2H5CHO
  • 1