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W340707

Sigma-Aldrich

trans-2-Methyl-2-butenal

sum of isomers, ≥99%, FG

Synonym(s):
Tiglinaldehyde, (E)-2-Methylbut-2-enal, Tiglic aldehyde, trans-2-Methyl-2-butenal, trans-2,3-Dimethylacrolein
Linear Formula:
CH3CH=C(CH3)CHO
CAS Number:
Molecular Weight:
84.12
FEMA Number:
3407
Beilstein:
1698207
Council of Europe no.:
2281
MDL number:
PubChem Substance ID:
Flavis number:
5.095
NACRES:
NA.21

Quality Level

biological source

synthetic

grade

FG
Halal
Kosher

Agency/Method

meets purity specifications of JECFA

reg. compliance

EU Regulation 1334/2008 & 178/2002

assay

≥99%

impurities

<2.0% tiglic acid

refractive index

n20/D 1.448 (lit.)

bp

116-119 °C/752 mmHg (lit.)
116-122 °C

density

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

Documentation

see Safety & Documentation for available documents

Featured Industry

Flavors and Fragrances

Organoleptic

green; fruity

food allergen

no known allergens

SMILES string

C\C=C(/C)C=O

InChI

1S/C5H8O/c1-3-5(2)4-6/h3-4H,1-2H3/b5-3+

InChI key

ACWQBUSCFPJUPN-HWKANZROSA-N

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General description

trans-2-Methyl-2-butenal is one of the major volatile constituents of coriander and olive oil.

Packaging

5 kg in steel drum
100 g in glass bottle
1 kg in aluminum bottle

Pictograms

FlameExclamation mark

Signal Word

Danger

Hazard Statements

Hazard Classifications

Eye Irrit. 2 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK Germany

WGK 3

Flash Point(F)

69.8 °F - closed cup

Flash Point(C)

21 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US),Eyeshields,Gloves

Characterisation of 39 varietal virgin olive oils by their volatile compositions.
Luna G, et al.
Food Chemistry, 98(2), 243-252 (2006)
Free and glycosidically bound volatiles in coriander herb (Coriandrum sativum).
Padmakumari KP.
Journal of Essential Oil-Bearing Plants, 11(6), 615-622 (2008)
Pingxi Xu et al.
Proceedings of the National Academy of Sciences of the United States of America, 111(46), 16592-16597 (2014-10-29)
Insect repellents are important prophylactic tools for travelers and populations living in endemic areas of malaria, dengue, encephalitis, and other vector-borne diseases. DEET (N,N-diethyl-3-methylbenzamide) is a 6-decade-old synthetic repellent, which is still considered the gold standard of mosquito repellents. Mosquitoes...

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