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281832

Sigma-Aldrich

Mesityl oxide

technical grade, 90%

Sinonimo/i:

4-Methyl-3-penten-2-one

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About This Item

Formula condensata:
(CH3)2C=CHCOCH3
Numero CAS:
141-79-7
Peso molecolare:
98.14
Beilstein:
1361550
Numero CE:
205-502-5
Numero MDL:
MFCD00008900
Codice UNSPSC:
12352100
ID PubChem:
24856998
NACRES:
NA.22

Grado

technical grade

Livello qualitativo

100

Saggio

90%

Forma fisica

liquid

Indice di rifrazione

n20/D 1.442 (lit.)

P. eboll.

130 °C (lit.)

Punto di fusione

-41.5 °C (lit.)

Densità

0.858 g/mL at 25 °C (lit.)

Gruppo funzionale

ketone

Stringa SMILE

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

InChI

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

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Descrizione generale

Zinc chloride-catalyzed condensation of mesityl oxide with ethyl acetoacetate has been reported.

Applicazioni

Mesityl oxide has been used:
  • in the synthesis of 2,3,4,5-tetrahydro-1,3,3-trimethyldipyrrin, a crucial building block in the rational synthesis of chlorins and oxochlorins
  • as neutral marker in the preparation of imidazole-coated capillary column for electrophoresis

Pittogrammi

FlameSkull and crossbones
GHS02,GHS06

Avvertenze

Danger

Classi di pericolo

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

Organi bersaglio

Respiratory system

Codice della classe di stoccaggio

3 - Flammable liquids

Classe di pericolosità dell'acqua (WGK)

WGK 1

Punto d’infiammabilità (°F)

87.8 °F - closed cup

Punto d’infiammabilità (°C)

31 °C - closed cup

Dispositivi di protezione individuale

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

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Certificati d'analisi (COA)

Lot/Batch Number
SHBM9005
SHBM8859
SHBL5050
MKCH2899
MKCC9867

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Sigma-Aldrich

68567

3-Methyl-3-penten-2-one

4-Hydroxy-4-methyl-2-pentanone analytical standard

Supelco

78891

4-Hydroxy-4-methyl-2-pentanone

Sodium methoxide solution 25 wt. % in methanol

Sigma-Aldrich

156256

Sodium methoxide solution

Isophorone 97%

Sigma-Aldrich

I18709

Isophorone

3-Penten-2-one 70%

Sigma-Aldrich

145017

3-Penten-2-one

Condensation of mesityl oxide with acetoacetic ester.
Surmatis JD, et al.
The Journal of Organic Chemistry, 35(4), 1053-1056 (1970)
C Y Liu et al.
Journal of chromatography. A, 897(1-2), 383-392 (2000-12-29)
An imidazole-coated capillary column for electrophoresis has been prepared by means of organosilanization. With mesityl oxide as neutral marker, the results indicated that the electroosmotic flow of the bonded phase displays a dramatic difference in pH dependence in comparison with
Marcin Ptaszek et al.
Organic process research & development, 9(5), 651-659 (2005-01-01)
2,3,4,5-Tetrahydro-1,3,3-trimethyldipyrrin (1) is a crucial building block in the rational synthesis of chlorins and oxochlorins. The prior 5-step synthesis of 1 from pyrrole-2-carboxaldehyde (2) employed relatively simple and well-known reactions yet suffered from several drawbacks, including limited scale (>/= 0.5
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
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