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W340707

Sigma-Aldrich

trans-2-Methyl-2-butenal

sum of isomers, ≥99%, FG

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Synonym(s):
Tiglic aldehyde, (E)-2-Methylbut-2-enal, trans-2,3-Dimethylacrolein, trans-2-Methyl-2-butenal, Tiglinaldehyde
Linear Formula:
CH3CH=C(CH3)CHO
CAS Number:
Molecular Weight:
84.12
FEMA Number:
3407
Beilstein/REAXYS Number:
1698207
Council of Europe no.:
2281
MDL number:
UNSPSC Code:
12164502
PubChem Substance ID:
Flavis number:
5.095
NACRES:
NA.21

biological source

synthetic

Quality Level

grade

FG
Halal
Kosher

agency

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.)

application(s)

flavors and fragrances

documentation

see Safety & Documentation for available documents

food allergen

no known allergens

organoleptic

green; fruity

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.

Application


  • Gas-Phase Reaction of trans-2-Methyl-2-butenal with Cl: Kinetics, Gaseous Products, and SOA Formation.: This study provides a comprehensive analysis of the atmospheric reactions involving trans-2-Methyl-2-butenal, highlighting its impact on air quality and secondary organic aerosol (SOA) formation. Such insights are crucial for environmental chemists and policymakers aiming to understand and mitigate air pollution (Antiñolo et al., 2020).

pictograms

FlameExclamation mark

signalword

Danger

Hazard Classifications

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

target_organs

Respiratory system

wgk_germany

WGK 3

flash_point_f

closed cup

flash_point_c

closed cup

ppe

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


Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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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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