TETRAMETHYL-1,3-CYCLOBUTANEDIONE

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)
EPA Substance Registry System :1,3-Cyclobutanedione, 2,2,4,4-tetramethyl- (933-52-8)

Symbol(GHS):
Signal word:	Warning
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H302 Harmful if swallowed Acute toxicity,oral Category 4 Warning P264, P270, P301+P312, P330, P501 H315 Causes skin irritation Skin corrosion/irritation Category 2 Warning P264, P280, P302+P352, P321,P332+P313, P362 H319 Causes serious eye irritation Serious eye damage/eye irritation Category 2A Warning P264, P280, P305+P351+P338,P337+P313P H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P261 Avoid breathing dust/fume/gas/mist/vapours/spray. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P302+P352 IF ON SKIN: wash with plenty of soap and water. P304+P340 IF INHALED: Remove victim to fresh air and Keep at rest in a position comfortable for breathing. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.