ChemicalBook > CAS DataBase List > TETRAMETHYL-1,3-CYCLOBUTANEDIONE
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
- Tel
- 03-36680489
- Fax
- 03-3668-0520
- Sales-JP@TCIchemicals.com
- Country
- Japan
- ProdList
- 28387
- Advantage
- 80
- Tel
- --
- Fax
- --
- reag-info@gms.kanto.co.jp
- Country
- Japan
- ProdList
- 6756
- Advantage
- 74
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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