TETRAMETHYL-1,3-CYCLOBUTANEDIONE

TETRAMETHYL-1,3-CYCLOBUTANEDIONE
  • CAS No.:933-52-8

Important Notice

  1. This product is a chemical product/pharmaceutical intermediate. It is not a drug, an active pharmaceutical ingredient (API), or a pharmaceutical-grade material. It has not been granted a drug approval number or a Chemical Drug Substance Approval Notice, has not passed drug-related review and approval, and is not manufactured, tested, or released in accordance with pharmaceutical GMP.
  2. This product is intended solely for non-clinical research, process development, quality studies, further chemical processing, or chemical synthesis. It must not be used in drug-product manufacturing, clinical trials, clinical diagnosis, or administration to humans or animals, or be sold, used as an input, submitted for regulatory filing, or released as an API or pharmaceutical material.
  3. The purchaser must not use this product, or supply it to another party, for personal consumption, sports or fitness, weight loss, health supplements, food, or animal feed.
Other grades of this product :
TETRAMETHYL-1,3-CYCLOBUTANEDIONE Basic information
Product Name:TETRAMETHYL-1,3-CYCLOBUTANEDIONE
Synonyms: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
CAS:933-52-8
MF:C8H12O2
MW:140.18
EINECS:213-269-6
Product Categories:Building Blocks;C7 to C8;Organics;Carbonyl Compounds;Chemical Synthesis;Organic Building Blocks;Cyclobutanes & Cyclobutenes;Simple 4-Membered Ring Compounds;C7 to C8;Carbonyl Compounds;Ketones
Mol File:933-52-8.mol
TETRAMETHYL-1,3-CYCLOBUTANEDIONE Chemical Properties
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
InChIKeyRGCDVHNITQEYPO-UHFFFAOYSA-N
CAS DataBase Reference933-52-8(CAS DataBase Reference)
EPA Substance Registry System1,3-Cyclobutanedione, 2,2,4,4-tetramethyl- (933-52-8)
Safety Information
Safety Statements 24/25
WGK Germany 3
RTECS GU1775000
TSCA Yes
HS Code 2914290090
Hazardous Substances Data933-52-8(Hazardous Substances Data)
MSDS Information
ProviderLanguage
SigmaAldrich English
ACROS English
ALFA English
TETRAMETHYL-1,3-CYCLOBUTANEDIONE Usage And Synthesis
Chemical Propertieswhite crystalline powder
UsesTetramethyl-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 MethodsCrystallise 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
Preparation Products2,2,4-Trimethyl-1,3-pentanediol

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