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W342904

Sigma-Aldrich

trans,trans-2,4-Hexadienal

≥80%

Synonym(s):

(E,E)-2,4-Hexadienal, Sorbaldehyde, Sorbic aldehyde

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W342904-SAMPLE
$53.48
100 G
$91.10
1 KG
$690.00

$53.48

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W342904-SAMPLE
$53.48
100 G
$91.10
1 KG
$690.00

About This Item

Linear Formula:
CH3CH=CHCH=CHCHO
CAS Number:
142-83-6
Molecular Weight:
96.13
FEMA Number:
3429
Beilstein/REAXYS Number:
1698401
EC Number:
205-564-3
Council of Europe no.:
640
MDL number:
MFCD00007004
UNSPSC Code:
12164502
PubChem Substance ID:
24901700
Flavis number:
5.057
NACRES:
NA.21
organoleptic:
green; fruity; citrus
biological source:
synthetic
food allergen:
no known allergens

$53.48

List Price$56.30Save 5%
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biological source

synthetic

Quality Level

400

vapor density

>1 (vs air)

assay

≥80%

refractive index

n20/D 1.541 (lit.)

bp

69 °C/20 mmHg (lit.)

density

0.895 g/mL at 20 °C
0.871 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

green; fruity; citrus

storage temp.

2-8°C

SMILES string

[H]C(=O)\C=C\C=C\C

InChI

1S/C6H8O/c1-2-3-4-5-6-7/h2-6H,1H3/b3-2+,5-4+

InChI key

BATOPAZDIZEVQF-MQQKCMAXSA-N

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General description

trans,trans-2,4-Hexadienal is a volatile is a flavor compound that is reported to occur in different types of tea.[1]

Disclaimer

For R&D or non-EU Food use. Not for retail sale.

pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

signalword

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Oral - Eye Dam. 1 - Skin Corr. 1B - Skin Sens. 1

Storage Class

6.1C - Combustible acute toxic Cat.3 / toxic compounds or compounds which causing chronic effects

wgk_germany

WGK 3

flash_point_f

154.0 °F - closed cup

flash_point_c

67.77 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
SHBS4435
SHBP2793
SHBP1139
SHBP9067
STBJ4850

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Comparison of catechins and volatile compounds among different types of tea using high performance liquid chromatograph and gas chromatograph mass spectrometer.
Wang K, et al.
International Journal of Food Science and Technology, 46(7), 1406-1412 (2011)
Margaret P O'Connor et al.
Physical chemistry chemical physics : PCCP, 8(44), 5236-5246 (2007-01-05)
The atmospheric photolysis of E-2-hexenal, Z-3-hexenal and E,E-2,4-hexadienal has been investigated at the large outdoor European Photoreactor (EUPHORE) in Valencia, Spain. E-2-Hexenal and E,E-2,4-hexadienal were found to undergo rapid isomerization to produce Z-2-hexenal and a ketene-type compound (probably E-hexa-1,3-dien-1-one), respectively.
exo-Selective asymmetric Diels-Alder reaction of 2,4-dienals and nitroalkenes by trienamine catalysis.
Zhi-Jun Jia et al.
Angewandte Chemie (International ed. in English), 50(37), 8638-8641 (2011-07-26)
National Toxicology Program technical report series, (509)(509), 1-290 (2004-03-05)
2,4-Hexadienal, a colorless to yellow liquid with a pungent "green" or citrus odor, is used as a food additive for flavor enhancement, as a fragrance agent, as a starting material or intermediate in synthetic reactions in the chemical and pharmaceutical
Ping C Lee et al.
Toxicology letters, 136(3), 173-181 (2002-12-31)
Since a number of food and food products contain 2,4-hexadienal (HX), an unsaturated aldehyde, human exposure to HX is likely. Long term HX feeding to rodents induces forestomach cancers. Aldehyde dehydrogenases (ALDH) are key enzymes in the stomach for the
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