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Safety Information

W342904

Sigma-Aldrich

trans,trans-2,4-Hexadienal

≥80%

Synonym(s):

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

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About This Item

Linear Formula:
CH3CH=CHCH=CHCHO
CAS Number:
142-83-6
Molecular Weight:
96.13
FEMA Number:
3429
Beilstein:
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

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.

Disclaimer

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

Pictograms

Skull and crossbonesCorrosion
GHS06,GHS05

Signal Word

Danger

Hazard Statements

H301 + H311,H314,H317

Hazard Classifications

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

Storage Class Code

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

WGK

WGK 3

Flash Point(F)

154.0 °F - closed cup

Flash Point(C)

67.77 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

ISHL Indicated Name

Substances Subject to be Indicated Names

ISHL Notified Names

Substances Subject to be Notified Names

JAN Code

W342904-1KG:4548173977898
W342904-BULK:
W342904-100G:4548173977881
W342904-VAR:
W342904-SAMPLE:
W342904-4KG:4548173977904

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Certificates of Analysis (COA)

Lot/Batch Number
SHBP2793
SHBP1139
SHBP9067
STBJ4850
STBJ0950

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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)
Po C Chan et al.
Archives of toxicology, 77(9), 511-520 (2003-07-25)
2,4-Hexadienal (2,4-Hx) was studied for its toxicity and carcinogenicity because of its alpha, beta-unsaturated aldehyde structure and potential link between exposure to lipid peroxidation products in the diet and human malignancies. Male and female F344N rats and B6C3F1 mice received
Cell spreading on collagen that has been exposed to reactive aldehydes.
L Thorne et al.
Biochemical Society transactions, 20(4), 369S-369S (1992-11-01)
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
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.
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