21835-01-8

Name 3-Ethyl-2-hydroxy-2-cyclopenten-1-one
CAS 21835-01-8
EINECS(EC#) 244-606-5
Molecular Formula C7H10O2
MDL Number MFCD00012391
Molecular Weight 126.15
MOL File 21835-01-8.mol
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Chemical Properties

Melting point  39.0 to 43.0 °C
Boiling point  75°C/0.3mmHg(lit.)
density  1.067 g/mL at 25 °C
FEMA  3152
refractive index  n20/D 1.476
Fp  225 °F
storage temp.  2-8°C
solubility  soluble in Methanol,Ether
form  powder to crystal
pka 9.17±0.20(Predicted)
color  White to Orange to Green
Odor at 1.00 % in propylene glycol. sweet caramel maple fenugreek
biological source synthetic
Odor Type caramellic
JECFA Number 419
Major Application flavors and fragrances
InChI 1S/C7H10O2/c1-2-5-3-4-6(8)7(5)9/h9H,2-4H2,1H3
InChIKey JHWFWLUAUPZUCP-UHFFFAOYSA-N
SMILES O=C1CCC(CC)=C1O
LogP 0.83
CAS DataBase Reference 21835-01-8(CAS DataBase Reference)
NIST Chemistry Reference 2-Cyclopenten-1-one, 3-ethyl-2-hydroxy-(21835-01-8)
EPA Substance Registry System 21835-01-8(EPA Substance)
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Safety Data

Symbol(GHS)  Exclamation Mark (GHS07)
GHS07
Signal word  Warning
Hazard statements  H317
Precautionary statements  P261-P272-P280-P333+P313-P362+P364-P501
Hazard Codes  Xn
Risk Statements 
R20/22:Harmful by inhalation and if swallowed .
Safety Statements 
S26:In case of contact with eyes, rinse immediately with plenty of water and seek medical advice .
S36:Wear suitable protective clothing .
WGK Germany  3
TSCA  TSCA listed
HS Code  29144000
Storage Class 11 - Combustible Solids
Hazard Classifications Skin Sens. 1

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