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ChemicalBook--->CAS DataBase List--->933-52-8

933-52-8

933-52-8 Structure

933-52-8 Structure
IdentificationMore
[Name]

TETRAMETHYL-1,3-CYCLOBUTANEDIONE
[CAS]

933-52-8
[Synonyms]

2,2,4,4-TETRAMETHYL-1,3-CYCLOBUTANEDIONE
DIMETHYL KETENE DIMER
RARECHEM AQ C4 0041
TETRAMETHYL-1,3-CYCLOBUTANEDIONE
TETRAMETHYLCYCLOBUTANE-1,3-DIONE
TIMTEC-BB SBB008408
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
[EINECS(EC#)]

213-269-6
[Molecular Formula]

C8H12O2
[MDL Number]

MFCD00001331
[Molecular Weight]

140.18
[MOL File]

933-52-8.mol
Chemical PropertiesBack Directory
[Appearance]

white crystalline powder
[Melting point ]

114-116 °C(lit.)
[Boiling point ]

95-159 °C750 mm Hg(lit.)
[density ]

1.0373 (rough estimate)
[refractive index ]

1.4580 (estimate)
[Fp ]

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)
Safety DataBack Directory
[Safety Statements ]

S24/25:Avoid contact with skin and eyes .
[WGK Germany ]

3
[RTECS ]

GU1775000
[TSCA ]

Yes
[HS Code ]

2914290090
[Hazardous Substances Data]

933-52-8(Hazardous Substances Data)
Hazard InformationBack Directory
[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.]
Spectrum DetailBack Directory
[Spectrum Detail]

TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)MS
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)1HNMR
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)13CNMR
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR1
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR2
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR3
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)Raman
Well-known Reagent Company Product InformationBack Directory
[Alfa Aesar]

Tetramethylcyclobutane-1,3-dione, 99%(933-52-8)
[Sigma Aldrich]

933-52-8(sigmaaldrich)
[TCI AMERICA]

Tetramethyl-1,3-cyclobutanedione  [Precursor to Dimethyl Ketene],>99.0%(GC)(933-52-8)
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