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W336807

Sigma-Aldrich

4-Methyl-3-penten-2-one

90%

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Synonym(s):
Mesityl oxide, 4-Methyl-3-penten-2-one
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

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

Regulatory Information

危险化学品

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