Mesityl oxide

Melting point :−53 °C(lit.)
Boiling point :129 °C(lit.)
Density :0.858 g/mL at 25 °C(lit.)
vapor pressure :10.5 hPa (20 °C)
refractive index :n20/D 1.442(lit.)
FEMA :3368 | 4-METHYL-3-PENTEN-2-ONE
Flash point :87 °F
storage temp. :Store below +30°C.
solubility :30g/l
form :Liquid, Free Of Suspended Matter
color :Clear
Specific Gravity :0.86
Odor :Strong; peppermint; honeylike.
Odor Type :vegetable
biological source :synthetic
explosive limit :1.4-10.1%(V)
Water Solubility :28 G/L (20 ºC)
Merck :14,5908
JECFA Number :1131
BRN :1361550
Henry's Law Constant :(x 10^-6 atmm³/mol): 4.01 at 20 °C (approximate - calculated from water solubility and vapor pressure)
Exposure limits :TLV-TWA 60 mg/m³ (15 ppm) (ACGIH), 10-h TWA 40 mg/m³ (10 ppm) (NIOSH); STEL 100 mg/m³ (25 ppm); IDLH 5000 ppm.
Dielectric constant :15.4（20℃）
Stability :Light Sensitive
Major Application :flavors and fragrances
Cosmetics Ingredients Functions :PERFUMING
InChI :1S/C6H10O/c1-5(2)4-6(3)7/h4H,1-3H3
InChIKey :SHOJXDKTYKFBRD-UHFFFAOYSA-N
SMILES :C\C(C)=C\C(C)=O
LogP :1.37 at 20℃
CAS DataBase Reference :141-79-7(CAS DataBase Reference)
NIST Chemistry Reference :3-Penten-2-one, 4-methyl-(141-79-7)
EPA Substance Registry System :Mesityl oxide (141-79-7)

Symbol(GHS):
Signal word:	Danger
Hazard statements:	Code Hazard statements Hazard class Category Signal word Pictogram P-Codes H226 Flammable liquid and vapour Flammable liquids Category 3 Warning 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 H331 Toxic if inhaled Acute toxicity,inhalation Category 3 Danger P261, P271, P304+P340, P311, P321,P403+P233, P405, P501 H335 May cause respiratory irritation Specific target organ toxicity, single exposure;Respiratory tract irritation Category 3 Warning
Precautionary statements:	P210 Keep away from heat/sparks/open flames/hot surfaces. — No smoking. P280 Wear protective gloves/protective clothing/eye protection/face protection. P301+P312 IF SWALLOWED: call a POISON CENTER or doctor/physician IF you feel unwell. P303+P361+P353 IF ON SKIN (or hair): Remove/Take off Immediately all contaminated clothing. Rinse SKIN with water/shower. P305+P351+P338 IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continuerinsing.