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W336807

Sigma-Aldrich

4-Methyl-3-penten-2-one

90%

Synonym(s):

Mesityl oxide, 4-Methyl-3-penten-2-one

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About This Item

Linear Formula:
(CH3)2C=CHCOCH3
CAS Number:
141-79-7
Molecular Weight:
98.14
FEMA Number:
3368
Beilstein:
1361550
EC Number:
205-502-5
Council of Europe no.:
11853
MDL number:
MFCD00008900
UNSPSC Code:
12164502
PubChem Substance ID:
24901670
Flavis number:
7.101
NACRES:
NA.21

biological source

synthetic

Quality Level

400

Assay

90%

impurities

≤10% 4-methyl-4-penten-2-one

refractive index

n20/D 1.442 (lit.)

bp

130 °C (lit.)

mp

-41.5 °C (lit.)

density

0.858 g/mL at 25 °C (lit.)

application(s)

flavors and fragrances

Documentation

see Safety & Documentation for available documents

food allergen

no known allergens

Organoleptic

earthy; vegetable

SMILES string

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

InChI

1S/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3

InChI key

SHOJXDKTYKFBRD-UHFFFAOYSA-N

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Pictograms

FlameSkull and crossbones
GHS02,GHS06

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Inhalation - Acute Tox. 4 Dermal - Acute Tox. 4 Oral - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 1

Flash Point(F)

87.8 °F - closed cup

Flash Point(C)

31 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

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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I Z Atamna et al.
Journal of chromatography, 588(1-2), 315-320 (1991-12-27)
Expressions are formulated for the prediction of solute migration time and resolution as a function applied voltage and buffer concentration in capillary zone electrophoresis. The resolution equation assumes that solute diffusion is the only operative zone-broadening mechanism. A resolution surface
Scott E Denmark et al.
The Journal of organic chemistry, 71(4), 1668-1676 (2006-02-14)
The mechanism of the formation of substituted quinolines from anilines and alpha,beta-unsaturated ketones has been studied by the use of 13C-labeled ketones in cross-over experiments. In the reaction of doubly labeled 13C(2,4) mesityl oxide, a 100% scrambling of the label
Christian Starkenmann
Journal of agricultural and food chemistry, 51(24), 7146-7155 (2003-11-13)
Cysteine conjugates, resulting from the addition of cysteine to alpha,beta-unsaturated carbonyl compounds, are important precursors of odorant sulfur compounds in food flavors. The aim of this work was to better understand this chemistry in the light of the unexpected double
Z Jia et al.
Electrophoresis, 22(6), 1112-1118 (2001-05-19)
A fast screening method for the determination of the dissociation constants (pKa) of acidic, basic, and multivalent compounds was developed by using pressure-assisted capillary electrophoresis (PACE). External air pressure was applied to shorten the analysis time. The separation efficiency decreases
Ting Li et al.
The Analyst, 137(20), 4766-4773 (2012-08-25)
Capillary electrophoresis (CE) is not only an effective separation technique, but can also serve as a sample preparation tool for enrichment and purification at sub-microliter sample volumes. Our approach is based on the use of a discontinuous buffer system consisting
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