ChemicalBook >> CAS DataBase List >>TETRAMETHYL-1,3-CYCLOBUTANEDIONE
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
- Molecular Weight:
- 140.18
- MDL Number:
- MFCD00001331
- MOL File:
- 933-52-8.mol
- MSDS File:
- SDS
Last updated:2026-05-27 23:33:19
| Product description | Number | Pack Size | Price |
| Tetramethyl-1,3-cyclobutanedione 99% | T21008 | 5g | $66.3 |
| Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene] >99.0%(GC) | D0258 | 5g | $47 |
| Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene] >99.0%(GC) | D0258 | 25g | $143 |
| Tetramethylcyclobutane-1,3-dione >99% | OR933088 | 25g | $21 |
| Tetramethylcyclobutane-1,3-dione >99% | OR933088 | 100g | $64 |
| More product size | |||
| 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) |
| EWG's Food Scores | 1 |
| FDA UNII | RT4AQ22KS4 |
| EPA Substance Registry System | 1,3-Cyclobutanedione, 2,2,4,4-tetramethyl- (933-52-8) |
| UNSPSC Code | 12352100 |
| NACRES | NA.22 |
SAFETY
Risk and Safety Statements
| Symbol(GHS) |  GHS07 |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Signal word | Warning | |||||||||
| Hazard statements | H302-H315-H319-H335 | |||||||||
| Precautionary statements | P261-P301+P312-P302+P352-P304+P340-P305+P351+P338 | |||||||||
| PPE | Eyeshields, Gloves, type N95 (US) | |||||||||
| Safety Statements | 24/25 | |||||||||
| WGK Germany | 3 | |||||||||
| RTECS | GU1775000 | |||||||||
| TSCA | TSCA listed | |||||||||
| HS Code | 2914290090 | |||||||||
| Storage Class | 11 - Combustible Solids | |||||||||
| Hazardous Substances Data | 933-52-8(Hazardous Substances Data) | |||||||||
| NFPA 704 |
|
TETRAMETHYL-1,3-CYCLOBUTANEDIONE price More Price(47)
| Manufacturer | Product number | Product description | CAS number | Packaging | Price | Updated | Buy |
|---|---|---|---|---|---|---|---|
| Sigma-Aldrich | T21008 | Tetramethyl-1,3-cyclobutanedione 99% | 933-52-8 | 5g | $66.3 | 2026-04-30 | Buy |
| TCI Chemical | D0258 | Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene] >99.0%(GC) | 933-52-8 | 5g | $47 | 2026-04-30 | Buy |
| TCI Chemical | D0258 | Tetramethyl-1,3-cyclobutanedione [Precursor to Dimethyl Ketene] >99.0%(GC) | 933-52-8 | 25g | $143 | 2026-04-30 | Buy |
| Apolloscientific | OR933088 | Tetramethylcyclobutane-1,3-dione >99% | 933-52-8 | 25g | $21 | 2026-06-04 | Buy |
| Apolloscientific | OR933088 | Tetramethylcyclobutane-1,3-dione >99% | 933-52-8 | 100g | $64 | 2026-06-04 | Buy |
TETRAMETHYL-1,3-CYCLOBUTANEDIONE Chemical Properties,Uses,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
Global( 166)Suppliers
| Supplier | Tel | Country | ProdList | Advantage | |
|---|---|---|---|---|---|
| Anhui Xinying Technology Co., Ltd | +undefined18334320925 | sales@xinying-chem.com | China | 133 | 58 |
| Capot Chemical Co.,Ltd. | +86-（0）57185586718 +86-13336195806 | sales@capot.com | China | 29640 | 60 |
| Henan Tianfu Chemical Co.,Ltd. | +86-0371-55170693 +86-19937530512 | info@tianfuchem.com | China | 21587 | 55 |
| Zhejiang ZETian Fine Chemicals Co. LTD | +8618957127338 | stella@zetchem.com | China | 2994 | 58 |
| Shandong chuangyingchemical Co., Ltd. | 18853181302 | sale@chuangyingchem.com | CHINA | 5906 | 58 |
| CONIER CHEM AND PHARMA LIMITED | +8618523575427 | sales@conier.com | China | 49979 | 58 |
| career henan chemical co | +86-0371-86658258 +8613203830695 | factory@coreychem.com | China | 29792 | 58 |
| SHANGHAI T&W PHARMACEUTICAL CO., LTD. | +86-021-61551413 +8618813727289 | contact@trustwe.com | China | 5742 | 58 |
| Guangzhou Yuheng Pharmaceutical Technology Co., Ltd | +8613580539051 | joe@yuhengpharm.com | CHINA | 21142 | 58 |
| Hefei TNJ Chemical Industry Co.,Ltd. | +86-0551-65418671 +8618949823763 | sales@tnjchem.com | China | 34563 | 58 |
View Lastest Price from TETRAMETHYL-1,3-CYCLOBUTANEDIONE manufacturers
| Image | Update time | Product | Price | Min. Order | Purity | Supply Ability | Manufacturer | |
|---|---|---|---|---|---|---|---|---|
 |
2025-12-01 | TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
|
1KG | 98.0% | 10000KGS | Shaanxi Dideu New Materials Co. Ltd | ||
 |
2021-08-12 | TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
|
$10.00-15.00 | 1KG | 99%+ HPLC | Zhuozhou Wenxi import and Export Co., Ltd | ||
 |
2020-01-09 | TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
|
$1.00 | 1KG | 99% | 100KG | Career Henan Chemical Co |
-
- TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
- 98.0%
- Shaanxi Dideu New Materials Co. Ltd
-
- TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
- $10.00-15.00
- 99%+ HPLC
- Zhuozhou Wenxi import and Export Co., Ltd
-
- TETRAMETHYL-1,3-CYCLOBUTANEDIONE
933-52-8
- $1.00
- 99%
- Career Henan Chemical Co
TETRAMETHYL-1,3-CYCLOBUTANEDIONE Spectrum
TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)MSTETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)1HNMRTETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)13CNMRTETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR1TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR2TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)IR3TETRAMETHYL-1,3-CYCLOBUTANEDIONE(933-52-8)Raman
933-52-8(TETRAMETHYL-1,3-CYCLOBUTANEDIONE)Related Search:
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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
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]>
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
