Tetramethyl-1,3-cyclobutanedione
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
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