Tetramethyl-1,3-cyclobutanedione

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Names

[ CAS No. ]:
933-52-8

[ Name ]:
Tetramethyl-1,3-cyclobutanedione

[Synonym ]:
1,3-Cyclobutanedione, 2,2,4,4-tetramethyl-
EINECS 213-269-6
Tetramethylcyclobutane-1,3-dione
2,2,4,4-Tetramethyl-1,3-cyclobutanedione
2,2,4,4-tetramethylcyclobutane-1,3-dione
Tetramethyl-1,3-cyclobutanedione
MFCD00001331

Chemical & Physical Properties

[ Density]:
1.0±0.1 g/cm3

[ Boiling Point ]:
208.3±15.0 °C at 760 mmHg

[ Melting Point ]:
114-116 °C(lit.)

[ Molecular Formula ]:
C8H12O2

[ Molecular Weight ]:
140.180

[ Flash Point ]:
74.3±17.4 °C

[ Exact Mass ]:
140.083725

[ PSA ]:
34.14000

[ LogP ]:
0.43

[ Vapour Pressure ]:
0.2±0.4 mmHg at 25°C

[ Index of Refraction ]:
1.443

MSDS

Click to get detail MSDS

Toxicological Information

CHEMICAL IDENTIFICATION

RTECS NUMBER :
GU1775000
CHEMICAL NAME :
1,3-Cyclobutanedione, 2,2,4,4-tetramethyl-
CAS REGISTRY NUMBER :
933-52-8
LAST UPDATED :
199701
DATA ITEMS CITED :
2
MOLECULAR FORMULA :
C8-H12-O2
MOLECULAR WEIGHT :
140.20
WISWESSER LINE NOTATION :
L4V CVTJ B1 B1 D1 D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :
TDLo - Lowest published toxic dose
ROUTE OF EXPOSURE :
Subcutaneous
SPECIES OBSERVED :
Rodent - mouse
DOSE/DURATION :
308 mg/kg/77W-I
TOXIC EFFECTS :
Tumorigenic - neoplastic by RTECS criteria Tumorigenic - tumors at site of application
REFERENCE :
JNCIAM Journal of the National Cancer Institute. (Washington, DC) V.1-60, 1940-78. For publisher information, see JJIND8. Volume(issue)/page/year: 46,143,1971

Safety Information

[ Personal Protective Equipment ]:
Eyeshields;Gloves;type N95 (US);type P1 (EN143) respirator filter

[ Safety Phrases ]:
S24/25

[ RIDADR ]:
NONH for all modes of transport

[ WGK Germany ]:
3

[ RTECS ]:
GU1775000

Related Compounds

  • 2,2,4,4-Tetramethyl-1,3-cyclobutanedione bisthiosemicarbazone
  • tetramethyl-[1,3]dithietane
  • [[3-(carbamoylhydrazinylidene)-2,2,4,4-tetramethyl-cyclobutylidene]amino]urea
  • 1,3-Cyclobutanedione,2,2,4,4-tetramethyl-, 1,3-dioxime
  • 6-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1H-indazol-3-amine
  • 3-(tetramethyl-1,3,2-dioxaborolan-2-yl)-1-[tris(propan-2-yl)silyl]-1H-pyrrole
  • 2-Cyclopropyl-4-phenyloxolane-3-carboxylic acid
  • 4-[ethyl(2-methylpropyl)amino]-4H,5H,6H,7H,8H-pyrazolo[1,5-a]azepine-2-carboxylic acid
  • Tert-butyl 1,3-dihydroxy-7-azaspiro[3.5]nonane-7-carboxylate
  • Piperidine, 3-(3a(2)-methoxy[1,1a(2)-biphenyl]-3-yl)-
  • 6-Methyl-2-oxo-decahydro-1,6-naphthyridine-3-carboxylic acid
  • 4-Phenyl-2-(propan-2-yl)furan-3-carboxylic acid
  • O1-tert-butyl O2-methyl (2R,5S)-5-[benzyloxy(benzyloxycarbonyl)amino]piperidine-1,2-dicarboxylate
  • (2,3,4,5,6-Pentafluorophenyl) 3-[tert-butoxycarbonyl-[3-oxo-3-(2,3,4,5,6-pentafluorophenoxy)propyl]amino]propanoate
  • (3R,5S)-3,5-difluoro(2,2,3,4,5,6,6-(2)H)piperidine
  • 3-Fluoro-1-methyl-4-methylidenepiperidine
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