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Name	(E)-2-Octenal	EINECS	219-833-8
CAS No.	2548-87-0	Density	0.846
PSA	17.07000	LogP	2.32180
Solubility	Insoluble in water; soluble in alcohol.	Melting Point	3.5°C (estimate)
Formula	C8H14 O	Boiling Point	84-86 ºC (19 mmHg)
Molecular Weight	126.199	Flash Point	150 ºF
Transport Information	N/A	Appearance	colorless to slightly yellow liquid
Safety	Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors.	Risk Codes	R36/37/38
Molecular Structure		Hazard Symbols
Synonyms	2-Octenal,(E)- (8CI); (2E)-Octenal; (E)-2-Octen-1-al; (E)-2-Octenal; (E)-Octen-2-enal;trans-2-Octanal; trans-2-Octenal; trans-Oct-2-en-1-al	Article Data	117

(E)-2-Octenal Synthetic route

: 18409-17-1
(E)-oct-2-en-1-ol

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With dmap; tetrakis(actonitrile)copper(I) hexafluorophosphate; N,N'-di-tert-butylethylenediamine; oxygen In dichloromethane at 20℃; under 760.051 Torr; for 1h; Schlenk technique; Molecular sieve; Sealed tube;	99%
With 1-methyl-1H-imidazole; [2,2]bipyridinyl; 2,2,6,6-tetramethyl-piperidine-N-oxyl; TPGS-750-M; copper(I) bromide In water at 20℃; for 9h;	93%
With potassium osmate(VI) dihydrate; potassium carbonate; potassium hexacyanoferrate(III) In water; acetonitrile at 60℃; for 14h; chemoselective reaction;	88%

: 7642-04-8
cis-2-octene

: 13389-42-9
trans-2-Octene

A: 2548-87-0
(E)-2-Octenal

B: 20664-46-4
cis-2-octene oxide

Conditions

Conditions	Yield
With (5,10,15,20-tetramesitylporphyrinato)manganese(III) chloride; 3-chloro-benzenecarboperoxoic acid In water; acetonitrile at 20℃; for 0.166667h; Reagent/catalyst; Concentration; Solvent; Inert atmosphere;	A 7% B 91%

: 20052-00-0
1,1-Diethoxy 2(E)-octene

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With water for 0.133333h; Microwave irradiation;	84%

: 20739-58-6
2-octyn-1-ol

A: 2548-87-0
(E)-2-Octenal

B: 20664-46-4
cis-2-octene oxide

Conditions

Conditions	Yield
tris(triphenylphosphine)ruthenium(II) chloride; tris(1-methylethyl)phosphine In toluene for 36h; Heating;	A 82% B n/a

: 103698-50-6
triphenylarsonium salt of bromoacetaldehyde

: 66-25-1
hexanal

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With water; potassium carbonate In tetrahydrofuran; diethyl ether for 17h; Ambient temperature;	81%
With potassium carbonate In tetrahydrofuran; diethyl ether; water at 25℃;	81%

: 2-<(E)heptenyl>-1,3-dioxolane

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With carbon tetrabromide; triphenylphosphine In dichloromethane for 140h; Ambient temperature;	80%
With water; toluene-4-sulfonic acid for 4h; Ambient temperature;

: 20664-46-4
cis-2-octene oxide

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With toluene-4-sulfonic acid In chloroform Heating;	75%

: 94704-96-8
1,1-diethoxy-3-octanol

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With hydrogenchloride In tetrahydrofuran; water for 4h; Heating;	75%

: 86254-73-1
(Z)-1-tert-Butylsulfanyl-oct-1-en-3-ol

A: 110-06-5
di-tert-butyl disulfide

B: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With copper(II) oxide In water; acetone for 1h; Ambient temperature;	A 33% B 74%

: 26001-58-1
(Z)-oct-2-en-1-ol

: 2548-87-0
(E)-2-Octenal

Conditions

Conditions	Yield
With pyridinium chlorochromate In dichloromethane for 3h; low temperature;	66%

(E)-2-Octenal Chemical Properties

Chemistry informtion about (E)-2-Octenal (CAS NO.2548-87-0) is:
IUPAC Name: (E)-Oct-2-Enal
Synonyms: (2e)-2-Octenal ; (E)-2-Octen-1-Al ; (E)-2-Octena ; 2-(E)-Octenal ; Oct-(E)-2-Enal ; Oct-2(E)-Enal ; T2 Octenal ; Trans-2-Octen-1-Al
Product Categories: aldehyde Flavor ; O-P;Alphabetical Listings ; Flavors and Fragrances;Aldehydes ; C₈ ; Carbonyl Compounds
MF: C₈H₁₄O
MW: 126.2
EINECS: 219-115-4
Density: 0.832 g/cm³
Flash Point: 65.6 °C
Boiling Point: 190.1 °C at 760 mmHg
Vapour Pressure: 0.552 mmHg at 25°C
Enthalpy of Vaporization: 42.63 kJ/mol
Refractive Index: n20/D 1.45(lit.)
FEMA: 3215
Following is the molecular structure of (E)-2-Octenal (CAS NO.2548-87-0) is:

(E)-2-Octenal Toxicity Data With Reference

1.		dnd-ham-fbr 250 µmol/l/1H		MUREAV Mutation Research. 497 (2001),185.
2.		dnd-hmn-oth 300 µmol/l/1H		MUREAV Mutation Research. 497 (2001),185.

(E)-2-Octenal Safety Profile

Mutation data reported. When heated to decomposition it emits acrid smoke and irritating vapors.
Hazard Codes:
Irritant Xi
Risk Statements:
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements:
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37/39:Wear suitable protective clothing, gloves and eye/face protection.
WGK Germany: 3
RTECS: RH2130000

(E)-2-Octenal Specification

(E)-2-Octenal (CAS NO.2548-87-0) is a colorless to pale yellow liquid. To protect yourself, you can put on eyeshields, full-face respirator (US), gloves, multi-purpose combination respirator cartridge (US), type ABEK (EN14387) respirator filter.

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