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343552

Sigma-Aldrich

3,3-Dimethoxy-2-butanone

98%

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About This Item

Linear Formula:
CH3C(OCH3)2COCH3
CAS Number:
21983-72-2
Molecular Weight:
132.16
MDL number:
MFCD00075266
UNSPSC Code:
12352100
PubChem Substance ID:
24861174
NACRES:
NA.22

Quality Level

100

Assay

98%

form

liquid

refractive index

n20/D 1.407 (lit.)

bp

145-146 °C (lit.)

density

0.987 g/mL at 25 °C (lit.)

SMILES string

COC(C)(OC)C(C)=O

InChI

1S/C6H12O3/c1-5(7)6(2,8-3)9-4/h1-4H3

InChI key

UFQBSPGKRRSATO-UHFFFAOYSA-N

General description

3,3-Dimethoxy-2-butanone is a biacetyl monoketal.

Application

3,3-Dimethoxy-2-butanone may be used as starting reagent in the synthesis of 6-acety1-l,2-dihydro-2-oxo-3-pyridinecarboxylic acid. It may be used in the preparation of 4,4-dimethoxy-3-oxo-1-phenyl-1-pentene.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H226

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

113.0 °F - closed cup

Flash Point(C)

45 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

343552-25G:
343552-VAR:
343552-5G:
343552-BULK:

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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An efficient synthesis and mechanism of formation of 6-acetyl-1, 2-dihydro-2-oxo-3-pyridinecarboxylic acid.
Sanchez JP.
Tetrahedron, 46(23), 7693-7698 (1990)
Magnesium Methoxide Cyclization of Biacetyl Derivatives1.
Muxfeldt H, et al.
The Journal of Organic Chemistry, 30(10), 3573-3574 (1965)

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