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Name	trans,cis-2,6-NONADIENAL	EINECS	N/A
CAS No.	557-48-2	Density	0.86g/mLat 25°C(lit.)
PSA	17.07000	LogP	2.48790
Solubility	N/A	Melting Point	N/A
Formula	C9H14 O	Boiling Point	94-95°C18mm Hg(lit.)
Molecular Weight	138.21	Flash Point	181°F
Transport Information	N/A	Appearance	clear colorless to pale yellow liquid
Safety	Low toxicity by ingestion and skin contact. A moderate skin irritant. When heated to decomposition it emits acrid smoke and irritating fumes.	Risk Codes	R36/37/38
Molecular Structure		Hazard Symbols	N/A
Synonyms	2,6-Nonadienal,(E,Z)- (8CI); 2,6-Nonadienal, trans,cis- (7CI); (2E,6Z)-Nona-2,6-dienal;(2E,6Z)-Nonadienal; (E,Z)-2,6-Nonadienal; (E,Z)-2,6-Nonadienal;2-trans-6-cis-Nonadienal; trans,cis-2,6-Nonadienal; trans-2,cis-6-Nonadienal	Article Data	25

trans,cis-2,6-NONADIENAL Synthetic route

: 67674-37-7
nona-2(Z),6(Z)-dienal diethyl acetal

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
Stage #1: nona-2(Z),6(Z)-dienal diethyl acetal In water at 3 - 8℃; for 0.166667h; Stage #2: With hydrogenchloride In water at 3 - 25℃; for 2h;	93.2%
With sulfuric acid In acetone at 70℃; for 1h;	25%
With sulfuric acid
With hydrogenchloride In hexane; water at 20℃; for 0.5h; Solvent;	52.56 g

: (3Z,6Z)-1,1-dimethoxynona-3,6-diene

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
With hydrogenchloride In water; acetone for 3h;	80%

: 5820-89-3, 7786-44-9, 28069-72-9
(2E,6Z)-2,6-nonadien-1-ol

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
With manganese(IV) oxide In pentane	67%
With sodium acetate; pyridinium chlorochromate In dichloromethane for 4h;	52%
With chromium(III) oxide; sulfuric acid

: 6728-31-0
(Z)-4-heptenal

: 2136-75-6
(triphenylphosphoranylidene)acetaldehyde

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
In 1,4-dioxane at 0 - 20℃; for 16h; Solvent;	38%
In benzene Wittig reaction; Heating;

: 186906-31-0
nona-2c,6c-dien-1-ol

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
With chromium(VI) oxide; sulfuric acid

: 26939-18-4
2,4,4,6-tetramethyl-5,6-dihydro-4H-1,3-oxazine

: 6728-31-0
(Z)-4-heptenal

: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
Multistep reaction;

: 52077-22-2
methyl colnelenate

A: 557-48-2
2E,6Z-nonadienal

B: 1931-63-1
methyl ester of azelaic acid aldehyde

Conditions

Conditions	Yield
With hydrogenchloride In methanol for 18h; Ambient temperature;

: C9H15O(1-)*Br(1-)*Mg(2+)

A: 5820-89-3, 7786-44-9, 28069-72-9
(2E,6Z)-2,6-nonadien-1-ol

B: 557-48-2
2E,6Z-nonadienal

Conditions

Conditions	Yield
With benzaldehyde In diethyl ether for 5h; Yield given. Yields of byproduct given;
With benzaldehyde In diethyl ether for 5h; Product distribution;

: (3Z,6Z)-1,1-dimethoxynona-3,6-diene

A: 557-48-2
2E,6Z-nonadienal

B: 21944-83-2
(3Z,6Z)-nona-3,6-dienal

Conditions

Conditions	Yield
With water; hydrogen cation In acetone Yield given;

: S-[3-[1-oxonon-(Z)-6-enyl]]-glutathione

A: 557-48-2
2E,6Z-nonadienal

B: 70-18-8
GLUTATHIONE

Conditions

Conditions	Yield
With phosphate buffer at 25℃; pH=7.2; Kinetics; Decomposition;

trans,cis-2,6-NONADIENAL Chemical Properties

IUPAC Name:(2E,6Z)-Nona-2,6-dienal (557-48-2)
Synonyms: Timtec-bb sbb006611 ; T2 c6 nonadienal ; Trans-2,cis-6-nonadienal ; Trans-2,cis-6-nonadien-1-al ; (2E,6Z)-2,6-Nonadienal ; (2E,6Z)-Nonadienal ; (eE-2,(Z)-6-Nonadienal ; (E,Z)-2,6-Nonadienal
CAS: 557-48-2
Molecular Formula: C₉H₁₄O
Molecular Weight: 138.2069
Molecular Struture:
Surface Tension: 28.5 dyne/cm
Density: 0.855 g/cm³
Flash Point: 82.8 °C
Enthalpy of Vaporization: 43.95 kJ/mol
Boiling Point: 203.3 °C at 760 mmHg
Vapour Pressure: 0.28 mmHg at 25°C
Density: 0.86 g/mL at 25 °C(lit.)
Refractive index : n20/D 1.474(lit.)
FEMA :3377
Storage temp: Refrigerator
Chemical properties: Trans,cis-2,6-nonadienal (557-48-2) is clear colorless to pale yellow liquid,with a strong aroma of violet and cucumber like. Soluble in ethanol, and most of the non-volatile oil, insoluble in water.

trans,cis-2,6-NONADIENAL Uses

GB 2760 - 1996 require that Trans,cis-2,6-nonadienal (557-48-2) can be used for the temporary to allow the use of food spices, mainly for the preparation of melon flavor.

trans,cis-2,6-NONADIENAL Production

derived from 2,6 - Wang diene -1 - alcohol by oxidation of chromium oxide

trans,cis-2,6-NONADIENAL Toxicity Data With Reference

1.	skn-rbt 500 mg/24H MOD	FCTOD7 Food and Chemical Toxicology. 20 (1982),769.
2.	orl-rat LD50:>5 g/kg	FCTOD7 Food and Chemical Toxicology. 20 (1982),769.
3.	skn-rbt LD50:>5 g/kg	FCTOD7 Food and Chemical Toxicology. 20 (1982),769.

trans,cis-2,6-NONADIENAL Consensus Reports

Reported in EPA TSCA Inventory.

trans,cis-2,6-NONADIENAL Safety Profile

Risk Statements : 36/37/38
36/37/38: Trans,cis-2,6-nonadienal (557-48-2) is irritating to eyes, respiratory system and skin
Safety Statements: 24/25
24/25: Avoid contact with skin and eyes
WGK Germany : 2
RTECS : RA5391800

trans,cis-2,6-NONADIENAL Specification

1.General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. Will burn if involved in a fire.
2.Extinguishing Media: Use water spray, dry chemical, carbon dioxide, or chemical foam.
3.Handling: Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
4.Storage: Keep away from sources of ignition. Store in a cool, dry place. Store in a tightly closed container. Keep under a nitrogen blanket. Keep refrigerated. (Store below 4°C/39°F.)

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