TETRAMETHYL-1,3-CYCLOBUTANEDIONE

Product Name: TETRAMETHYL-1,3-CYCLOBUTANEDIONE
CAS No.: 933-52-8
Chemical Name: TETRAMETHYL-1,3-CYCLOBUTANEDIONE
Synonyms: NSC 72172;NSC 46472;Dimethylkene dimer;RARECHEM AQ C4 0041;TIMTEC-BB SBB008408;DIMETHYL KETENE DIMER;Tetramethylcyclobutenedione;Tetramethylcyclobuta-1,3-dione;[Precursor to DiMethyl Ketene];TETRAMETHYLCYCLOBUTANE-1,3-DIONE
CBNumber: CB1177783
Molecular Formula: C8H12O2
Formula Weight: 140.18
MOL File: 933-52-8.mol

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TETRAMETHYL-1,3-CYCLOBUTANEDIONE Property

Melting point:: 114-116 °C(lit.)
Boiling point:: 95-159 °C750 mm Hg(lit.)
Density: 1.0373 (rough estimate)
refractive index: 1.4580 (estimate)
Flash point:: 120-122°C/150mm
storage temp.: Sealed in dry,Room Temperature
solubility: It is soluble in chloroform.
form: powder to crystal
color: White to Almost white
InChI: InChI=1S/C8H12O2/c1-7(2)5(9)8(3,4)6(7)10/h1-4H3
InChIKey: RGCDVHNITQEYPO-UHFFFAOYSA-N
SMILES: C1(=O)C(C)(C)C(=O)C1(C)C
CAS DataBase Reference: 933-52-8(CAS DataBase Reference)
EPA Substance Registry System: 1,3-Cyclobutanedione, 2,2,4,4-tetramethyl- (933-52-8)

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Safety

Safety Statements: 24/25
WGK Germany: 3
RTECS: GU1775000
TSCA: Yes
HS Code: 2914290090
Hazardous Substances Data: 933-52-8(Hazardous Substances Data)

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Hazard and Precautionary Statements (GHS)

Symbol(GHS)

Signal word

Warning

Hazard statements

H302Harmful if swallowed

H315Causes skin irritation

H319Causes serious eye irritation

H335May cause respiratory irritation

Precautionary statements

P261Avoid breathing dust/fume/gas/mist/vapours/spray.

P301+P312IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell.

P302+P352IF ON SKIN: wash with plenty of soap and water.

P304+P340IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing.

P305+P351+P338IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.

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N-Bromosuccinimide Price

Sigma-Aldrich

Product number: T21008
Product name: Tetramethyl-1,3-cyclobutanedione
Purity: 99%
Packaging: 5g
Price: $59.18
Updated: 2025/07/31

TCI Chemical

Product number: D0258
Product name: Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene]
Purity: >99.0%(GC)
Packaging: 5g
Price: $47
Updated: 2025/07/31

TCI Chemical

Product number: D0258
Product name: Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene]
Purity: >99.0%(GC)
Packaging: 25g
Price: $143
Updated: 2025/07/31

TRC

Product number: T204598
Product name: Tetramethyl-1,3-Cyclobutanedione
Packaging: 50mg
Price: $45
Updated: 2021/12/16

GFS CHEMICALS

Product number: 73162
Product name: TETRAMETHYLCYCLOBUTADIONE
Packaging: 25g
Price: $81.95
Updated: 2021/12/16

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TETRAMETHYL-1,3-CYCLOBUTANEDIONE Chemical Properties,Usage,Production

Chemical Properties

white crystalline powder

Uses

Tetramethyl-1,3-cyclobutanedione is used as a chemical for life science research. It is also used to make other chemical, as well as an chemical and organic intermediate.

Synthesis Reference(s)

Canadian Journal of Chemistry, 50, p. 3923, 1972 DOI: 10.1139/v72-619

Purification Methods

Crystallise the dione from *C6H6 and dry it in vacuo over P2O5 in an Abderhalden pistol. [Beilstein 7 III 3234, 7 IV 2004.]

TETRAMETHYL-1,3-CYCLOBUTANEDIONE Preparation Products And Raw materials

Raw materials

Preparation Products

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TETRAMETHYL-1,3-CYCLOBUTANEDIONE Suppliers

Americas 1 Belgium 2 China 115 Europe 3 Germany 5 India 5 Japan 2 Switzerland 3 United Kingdom 5 United States 23 Global 164

Suzhou Sino Rare Chemical Co., Ltd.

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Tianjin heowns Biochemical Technology Co., Ltd.

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View Lastest Price from TETRAMETHYL-1,3-CYCLOBUTANEDIONE manufacturers

Shaanxi Dideu New Materials Co. Ltd

Product: TETRAMETHYL-1,3-CYCLOBUTANEDIONE 933-52-8
Price: US $0.00-0.00/KG
Min. Order: 1KG
Purity: 98.0%
Supply Ability: 10000KGS
Release date: 2025-07-07

Zhuozhou Wenxi import and Export Co., Ltd

Product: TETRAMETHYL-1,3-CYCLOBUTANEDIONE 933-52-8
Price: US $15.00-10.00/KG
Min. Order: 1KG
Purity: 99%+ HPLC
Supply Ability: Monthly supply of 1 ton
Release date: 2021-08-11

Career Henan Chemical Co

Product: TETRAMETHYL-1,3-CYCLOBUTANEDIONE 933-52-8
Price: US $1.00/KG
Min. Order: 1KG
Purity: 99%
Supply Ability: 100KG
Release date: 2020-01-08

933-52-8, TETRAMETHYL-1,3-CYCLOBUTANEDIONERelated Search:

Tetramethylammonium nitrate (S,S)-(-)-2,3-DIHYDROXY-N,N,N',N'-TETRAMETHYLSUCCINAMIDE TETRAMETHYLSUCCINONITRILE 1,1,3,3-Tetramethyldisilazane 2,2,6,6-Tetramethyl-4-piperidinol TETRAMETHYLAMMONIUM HYDROGENSULFATE propanedial 2,2,4-TRIMETHYL-3-PENTANONE 2-methylpentane Pivaldehyde Cyclobutanone TETRAMETHYL-1,3-CYCLOBUTANEDIONE 2-METHYL-3-PENTANONE 2,2-Dimethylpentane 2,4-Dimethyl-3-pentanone CYCLOBUTANE Pinacolone Methyl valeraldehyde

TETRAMETHYL-1,3-CYCLOBUTANEDIONE

TETRAMETHYLCYCLOBUTANE-1,3-DIONE

TIMTEC-BB SBB008408

RARECHEM AQ C4 0041

2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIONE

DIMETHYL KETENE DIMER

1,1,3,3-Tetramethylcyclobutanedione

2,2,4,4-Tetramethyl cyclobutane-1,3-dione

2,2,4,4-tetramethyl-3-cyclobutanedione

2,2,4,4-Tetramethylcyclobutanedione

Tetramethylcyclobuta-1,3-dione

Tetramethyl-1,3-cyclobutanedione, GC 99%

1,3-Cyclobutanedione, 2,2,4,4-tetramethyl-

Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene]

Dimethylkene dimer

Tetramethyl-1,3-cyclobutanedione,99%

Tetramethyl-1,3-cyclobutanedione 99%

NSC 72172

NSC 46472

[Precursor to DiMethyl Ketene]

TetraMethyl-1,3-cyclobutanedione&nbsp

TETRAMETHYL-1,3-CYCLOBUTANEDIONE, 99%TETRAMETHYL-1,3-CYCLOBUTANEDIONE, 99%TETRAMETHYL-1,3-CYCLOBUTANEDIONE, 99%TETRAMETHYL-1,3-CYCLOBUTANEDIONE, 99%

Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene]&gt

Tetramethylcyclobutenedione

933-52-8

933-53-8

CH34C4O2

Simple 4-Membered Ring Compounds

Cyclobutanes & Cyclobutenes

Building Blocks

C7 to C8

Carbonyl Compounds

Organic Building Blocks

Ketones

Building Blocks

C7 to C8

Carbonyl Compounds

Chemical Synthesis

Organic Building Blocks

Organics

Cyclobutanes & Cyclobutenes

Simple 4-Membered Ring Compounds

C7 to C8

Carbonyl Compounds

Ketones