ChemicalBook > CAS DataBase List > Acetylacetaldehyde dimethyl acetal

Acetylacetaldehyde dimethyl acetal

Product Name: Acetylacetaldehyde dimethyl acetal
CAS No.: 5436-21-5
Chemical Name: Acetylacetaldehyde dimethyl acetal
Synonyms: 4,4-DIMETHOXY-2-BUTANONE;KBA;AADMA;4,4-dimethoxybutanon;4,4-dimethoxybutanone;1,1-DIMETHOXY-3-BUTANONE;2-Butanone, 4,4-dimethoxy-;4,4-Dimethoxy-2-butanone (DMB);3-OXOBUTYRALDEHYDE DIMETHYLACETAL;FADMA
CBNumber: CB3708585
Molecular Formula: C6H12O3
Formula Weight: 132.16
MOL File: 5436-21-5.mol

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Acetylacetaldehyde dimethyl acetal Property

Melting point:: -82 °C
Boiling point:: 70-73 °C/20 mmHg (lit.)
Density: 0.996 g/mL at 25 °C (lit.)
refractive index: n20/D 1.414(lit.)
FEMA: 3381 | 3-OXOBUTANAL DIMETHYL ACETAL
Flash point:: 121 °F
storage temp.: Inert atmosphere,Room Temperature
solubility: soluble in Chloroform, Ethyl Acetate
form: Liquid
color: Clear colorless to yellow
Odor: at 0.10 % in dipropylene glycol. ethereal musty nutty alcoholic bitter
Odor Type: ethereal
Water Solubility: decomposes
JECFA Number: 593
BRN: 1702372
InChIKey: PJCCSZUMZMCWSX-UHFFFAOYSA-N
LogP: 0.33
CAS DataBase Reference: 5436-21-5(CAS DataBase Reference)
NIST Chemistry Reference: 2-Butanone, 4,4-dimethoxy-(5436-21-5)
EPA Substance Registry System: 2-Butanone, 4,4-dimethoxy- (5436-21-5)

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Safety

Hazard Codes: F
Risk Statements: 10
Safety Statements: 16
RIDADR: UN 1989 3/PG 3
WGK Germany: 2
RTECS: EL7592500
TSCA: Yes
HazardClass: 3
PackingGroup: III
HS Code: 29145000

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H226Flammable liquid and vapour

Precautionary statements

P210Keep away from heat/sparks/open flames/hot surfaces. — No smoking.

P233Keep container tightly closed.

P240Ground/bond container and receiving equipment.

P241Use explosion-proof electrical/ventilating/lighting/…/equipment.

P242Use only non-sparking tools.

P243Take precautionary measures against static discharge.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: 380067
Product name: 4,4-Dimethoxy-2-butanone
Purity: technical grade, ≥90%
Packaging: 100ml
Price: $94.1
Updated: 2025/07/31

Sigma-Aldrich

Product number: 380067
Product name: 4,4-Dimethoxy-2-butanone
Purity: technical grade, ≥90%
Packaging: 500ml
Price: $144
Updated: 2025/07/31

TCI Chemical

Product number: D1157
Product name: 1,1-Dimethoxy-3-butanone
Purity: >90.0%(GC)
Packaging: 25mL
Price: $27
Updated: 2025/07/31

TCI Chemical

Product number: D1157
Product name: 1,1-Dimethoxy-3-butanone
Purity: >90.0%(GC)
Packaging: 100mL
Price: $61
Updated: 2025/07/31

TCI Chemical

Product number: D1157
Product name: 1,1-Dimethoxy-3-butanone
Purity: >90.0%(GC)
Packaging: 500mL
Price: $167
Updated: 2025/07/31

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Acetylacetaldehyde dimethyl acetal Chemical Properties,Usage,Production

Chemical Properties

Clear colorless to yellow liquid

Uses

Acetaldehyde dimethyl acetal is used as a flavoring agent. It is also used in the preparation of (R)-4,4-dimethoxy-2-butanol, pyrazoles and pyrimidines. Further, it is used in the preparation of N,N-diethyl-[2-(4-fluorophenyl)-5-methylpyrazolo[1,5-a]-pyrimidin-3-yl]acetamide and acetoacetaldehyde.

Uses

4,4-Dimethoxy-2-butanone (β-ketobutyracetal) may be used in the preparation of:

(R)-4,4-dimethoxy-2-butanol
pyrazoles and pyrimidines
[7,16-dihydro- 6,15( 17)-dimetbyldibenzo[b,i]-[1,4,8,11]tetrilazacyclotetradecinato-N⁵,N⁹,N¹⁴,N¹⁸]nickel{II)

Definition

ChEBI: 4,4-Dimethoxy-2-butanone is a ketone.

Synthesis Reference(s)

The Journal of Organic Chemistry, 41, p. 3765, 1976 DOI: 10.1021/jo00885a028
Tetrahedron Letters, 28, p. 6657, 1987 DOI: 10.1016/S0040-4039(00)96938-7

General Description

4,4-Dimethoxy-2-butanone (Acetylacetaldehyde dimethylacetal) is a ketone.

Synthesis

107-31-3

67-64-1

5436-21-5

Methanol was added to the 3L and 2L flasks, 257 g of sodium methanolate (1.852 mol) was dissolved in methanol and the temperature was maintained at 40 °C. A mixture of 118.1 g of acetone (2.036 mol) and 333.6 g of methyl formate (5.555 mol) was added dropwise to the reaction system at 40 °C for 4 hours. After the dropwise addition, stirring was continued for 1 h. Subsequent cooling to 20 °C gave 184 g of formalin acetone sodium salt (92% quantitative yield by HPLC using sodium methanol as standard). The resulting formalin acetone sodium salt was transferred to a necked down 3L reactor, methanol was added, and 6.2 g of sulfuric acid (0.063 mol) was added, keeping the temperature at 30 °C. The reaction solution of formylacetone was added to the reaction system simultaneously with 93.8 g of sulfuric acid (0.957 mol) dropwise at 30 °C or lower for 1 hour, during which the pH was maintained between 0-1. After completion of the dropwise addition, the mixture was continued to be stirred at the same temperature for 4 hours and subsequently cooled to 20°C. The pH was adjusted to 7-8 with 20% sodium hydroxide solution, the resulting salt was removed by filtration, and the distillate was collected by distillation to give a final 195.6 g of 4,4-dimethoxy-2-butanone (80.0% yield based on sodium methanol and 87.0% yield based on formalin acetone sodium salt).

Toxics Screening Level

The ITSL for 4,4-dimethoxy-2-butanone is 20 μg/m3 annual average.

References

[1] Patent: KR2017/17372, 2017, A. Location in patent: Paragraph 0047; 0065-0070

Acetylacetaldehyde dimethyl acetal Preparation Products And Raw materials

Raw materials

Preparation Products

METHYL 3-METHYL-2-FUROATE 1-METHOXY-3-TRIMETHYLSILOXY-1,3-BUTADIENE 2-METHANESULFONYL-4-METHYL-PYRIMIDINE 5-METHYL-4-ISOXAZOLESULFONYL CHLORIDE Ethyl 5-methyl-1H-pyrrole-2-carboxylate 4-METHOXY-3-BUTEN-2-ONE 4-METHYL-PYRIMIDINE-2-SULFONYL FLUORIDE 3-Methyl-2-furoic acid 3-METHYL-1-PHENYLPYRAZOLE 4-METHYL-2-(METHYLSULFANYL)PYRIMIDINE 2-FLUORO-6-METHYLNAPHTHALENE

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View Lastest Price from Acetylacetaldehyde dimethyl acetal manufacturers

Jinan Finer Chemical Co., Ltd

Product: 4,4-Dimethoxy-2-butanone 5436-21-5
Price: US $0.00/Kg/Drum
Min. Order: 1KG
Purity: 99%
Supply Ability: 100mt/year
Release date: 2021-06-08

Hebei Chuanghai Biotechnology Co., Ltd

Product: Acetylacetaldehyde dimethyl acetal 5436-21-5
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 500000kg
Release date: 2024-11-05

Dideu Industries Group Limited

Product: Acetylacetaldehyde dimethyl acetal 5436-21-5
Price: US $1.10/g
Min. Order: 1g
Purity: 99.9%
Supply Ability: 100 Tons Min
Release date: 2025-04-09

5436-21-5, Acetylacetaldehyde dimethyl acetalRelated Search:

Dimethyl sulfide Dimethyl sulfate Dimethyl ether Dimethyl carbonate Dimethyl sulfoxide N,N-Dimethylformamide Diphenyldimethoxysilane Dimethyldimethoxysilane 2-Butanone oxime 1,1-Dimethoxyethane Dimethyl fumarate 4-Methyl-2-pentanone ETHANE Acetal Trospectomycin 2-Butanone Spectinomycin dihydrochloride SPECTINOMYCIN SULFATE

AADMA

ACETYLACETALDEHYDE DIMETHYL ACETAL

ACETOACETALDEHYDE-1,1-DIMETHYL ACETAL

ACETOACETALDEHYDE DIMETHYL ACETAL

3-OXOBUTYRALDEHYDE DIMETHYLACETAL

3-KETOBUTYRALDEHYDE-1-DIMETHYLACETAL

3-KETOBUTYRALDEHYDE DIMETHYL ACETAL

3-KETOBUTYRIC ALDEHYDE 1-DIMETHYL ACETAL

FEMA 3381

FADMA

FORMYLACETONE DIMETHYL ACETAL

KBA

4,4-DiMethxoy-2-butanone

Acetoacetaldehyde, 1-(diMethyl acetal) (6CI,7CI,8CI)

NSC 59721

4,4- twoMethoxy -2-butanone

3-Oxobutyraldehyde 1-(dimethylacetal)

4,-Dimethoxy-2-Butanone

Acetylacetaldehyde dimethyl acetal, tech., 90%

Acetylacetaldehydedimethylacetal,90+%

2-ACETOACTALDEHYDE DIMETHYL ACETAL

2-Butanone, 4,4-dimethoxy-

4,4-Dimethoxyl butan-2-one

4,4-DIMETHOXY BUTAN-2-ONE

4,4-dimethoxybutanon

4,4-DIMETHOXY-2-BUTANONE

1,1-DIMETHOXY BUTANONE-3

1,1-DIMETHOXY-3-BUTANONE

3-OXOBUTANALDIMETHYLACETAL

4,4-DIMETHOXY-2-BUTANONE[FOR NEVIRAPINE]

Acetylacetaldehyde dimethyl acetal, 3-Ketobutyraldehyde dimethyl acetal, 3-Oxobutyraldehyde dimethylacetal

3-Ketobutyraldehyde dimethyl acetal, 3-Oxobutyraldehyde dimethylacetal, 4,4-Dimethoxy-2-butanone, Acetylacetaldehyde dimethylacetal

3-Ketobutyraldehyde dimethyl acetal, 4,4-Dimethoxy-2-butanone, AADMA, Acetylacetaldehyde dimethylacetal

3-Ketobutyraldehyde dimethyl acetal, 4,4-Dimethoxy-2-butanone, Acetylacetaldehyde dimethylacetal

4,4-Dimethoxybutanon 4,4-Dimethoxy-2-butanone 1,1-Dimethoxy-3-butanone Acetoacetaldehyde dimethylacetal 3-Ketobutyraldehyde dimethyl acetal 3-Oxobutanal dimethylacetal

3-Ketobutyraldehyde dimethyl acetal 3-Oxobutanal dimethylacetal

Acetylacetaldehyde dimethyl acetal,92%

4,4-Dimethoxy-2-butanone ,90%

Acetylacetaldehyde d

Acetylacetaldehyde diMethyl acetal, 92% 250ML

4,4-Dimethoxy-2-butanone (DMB)

ACETYLACETALDEHYD-DIMETHYLACETAL 95%

3-OXOBUTYRALDEHYDE DIMETHYLACETAL,WACKER QUALITY

ACETYLACETALDEHYDE DIMETHYL ACETAL, TECH ., 90+%

4,4-dimethoxy-2-butanon

Acetoacetaldehyde, 1-(dimethyl acetal)

acetoacetaldehyde,1-(dimethylacetal)

Acetylacetaldehyddimethylacetal

Acetylacetaldhydedimethylacetal

beta-Oxobutyraldehyde dimethyl acetal

beta-oxobutyraldehydedimethylacetal

4,4-dimethoxybutanone

Acetylacetaldehyde dimethyl acetal, technical, 90%

Acetoacetaldehyde-1,1-dimethyl acetal for synthesis

4,4-dimethoxy-2-butyl copper

1,1-Dimethoxy-3-butanone &gt

4,4-Dimethoxy-2-butone

Acetylacetaldehyde dimethyl acetal 92%