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3-Methyl-1,2-cyclopentanedione Structure

3-Methyl-1,2-cyclopentanedione

Chemical Properties

Melting point 104-108 °C(lit.)
Boiling point 170.05°C (rough estimate)
Density  1.0795 (rough estimate)
refractive index  1.4550 (estimate)
FEMA  2700 | METHYLCYCLOPENTENOLONE
Flash point 100 °C
storage temp.  Store below +30°C.
solubility  soluble in Methanol
form  Powder
color  White to off-white
Odor at 10.00 % in dipropylene glycol. sweet caramel maple sugar coffee woody
Odor Type caramellic
Water Solubility  soluble
λmax 259nm(EtOH)(lit.)
JECFA Number 418
BRN  2076520
LogP 0.04
CAS DataBase Reference 765-70-8(CAS DataBase Reference)
NIST Chemistry Reference 1,2-Cyclopentanedione, 3-methyl-(765-70-8)
EPA Substance Registry System 1,2-Cyclopentanedione, 3-methyl- (765-70-8)

Safety Information

Hazard Codes  Xi
Risk Statements  36/37/38-43
Safety Statements  22-24/25-36/37-26-36
WGK Germany  3
TSCA  Yes
HS Code  29142900

MSDS

Usage And Synthesis

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