ethyl cyclopentenolone
 
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IUPAC name :3-ethyl-2-hydroxycyclopent-2-en-1-one
InChI :InChI=1/C7H10O2/c1-2-5-3-4-6(8)7(5)9/h9H,2-4H2,1H3
InChIKey :JHWFWLUAUPZUCP-UHFFFAOYAA
SMILES :CCC1=C(C(=O)CC1)O
(EINECS) number :244-606-5
cas number :21835-01-8
fema number :3152
coe number :759
jecfa number :419
fl. number :07.057
molar refractivity :33.70 ± 0.3 cm3
parachor :283.0 ± 6.0 cm3
index of refraction :1.530 ± 0.02
surface tension :45.4 ± 3.0 dyne/cm
density :1.156 ± 0.06 g/cm3
polarizability :13.36 ± 0.5 10-24cm3
xlogp : 0.90
molecular weight : 126.1531000
formula :C7 H10 O2
 
 
fda reg :unspecified h. number :unspecified
organoleptics : 
odor type :caramellic
odor strength :high ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in propylene glycol.  
sweet caramel maple rum whiskey
taste description³ :at 12.00 ppm.  
Sweet, jammy, fruity, brown, toasted, maple, nutty
substantivity :92  Hour(s)
properties : 
appearence :pale brown powder
assay : 97.00 - 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :1.06200 - 1.09200 @ 25.00 °C.
pounds per gallon - calc. : 8.837 to 9.087
refractive index :1.46300 - 1.48200 @ 20.00 °C.
melting point : 42.00 - 44.00 °C. @ 760.00 mm Hg
boiling point : 78.00 - 80.00 °C. @ 4.00 mm Hg
boiling point : 65.00 - 68.00 °C. @ 1.00 mm Hg
logp : 0.83
shelf life : 12.00 month(s) or longer if stored properly.
Storage :refrigerate in tightly sealed containers.
safety : 
Oral Toxicity(LD50) : Not determined
Dermal Toxicity(LD50) : Not determined
  
flash point ( Deg. F. ) : 212.00  °F.  TCC  ( 100.00 °C. )
  
recommendation for ethyl cyclopentenolone usage levels up to :
  0.3000 % in the fragrance concentrate.
  
recommendation for ethyl cyclopentenolone usage levels up to :
  10.0000 ppm in the flavor.
  
safety links : 
(EINECS) number :244-606-5
chemidplus :021835018
epa-srs :21835-01-8
  
other : 
 
references : 
jecfa number :419
fl. number :07.057
pubchem :204701
NIST Chemistry WebBook :1085347102
  
reference : Mosciano, Gerard P&F 23, No. 5, 49, (1998)³
synonyms :
 coffee pentenolone
3-ethyl cyclopentan-1,2-dione
 ethyl cyclopentenolone
 ethyl cyclotene
3-ethyl-2-cyclopenten-2-ol-1-one
3-ethyl-2-hydroxy-2-cyclopenten-1-one
soluble in :
 alcohol
insoluble in :
 water
(odor and/or flavor) blends with :
 acetoin
2-acetyl furan
 acetyl propionyl
3-acetyl-2,5-dimethyl furan
2-acetyl-3,4,5,6-tetrahydropyridine
2-acetyl-3,5(or 6)-dimethyl pyrazine
 allyl 2-furoate
 allyl hexanoate
 allyl phenyl acetate
isoamyl 3-(2-furan) propionate
isoamyl pyruvate
 benzyl disulfide
 berry furanone
 berry pentadienoate
isobutyl butyrate
 butyl decanoate
 butyl formate
 butyl levulinate
2-oxobutyric acid
gamma-butyrolactone
 caramel dione
 caramel furanone
 caramel pentadione
 coffee dione
 cyclohexanone diethyl acetal
 cyclohexyl acetic acid
 decyl propionate
 diacetyl
2,5-diethyl tetrahydrofuran
alpha,alpha-dimethyl anisyl acetone
2,3-dimethyl pyrazine
 ethyl (E)-crotonate
 ethyl 2-hydroxy-2-methyl butyrate
 ethyl 2-methyl-2-pentenoate
 ethyl 4-pentenoate
 ethyl acetate
 ethyl heptanoate
 ethyl hydrocinnamate
 ethyl maltol
 ethyl nonanoate
 ethyl propionate
 ethyl pyruvate
(E)-ethyl tiglate
 ethyl vanillin
5-ethyl-2,3,4,5-tetramethyl-2-cyclohexen-1-one
5-ethyl-3,4,5,6-tetramethyl cyclohexen-2-one
 fenugreek absolute
 fenugreek oleoresin
 fenugreek resinoid
 fruity carboxylate
 furfuryl acetone
 furfuryl alcohol
 furfuryl octanoate
 furfuryl valerate
 geranyl crotonate
 geranyl methyl tiglate
gamma-heptalactone
 heptyl acetate
3,4-hexane dione
3-hexanone
(E)-2-hexen-1-yl formate
(E)-2-hexen-1-yl phenyl acetate
1-hexen-3-ol
1-hexen-3-yl acetate
5-hydroxymethyl furfural
 immortelle absolute
 levulinic acid
 linalyl propionate
 maltol
 maltyl propionate
 mango furanone
 maple furanone
 maple lactone
 menthone lactone
 mesitene lactone
3-methyl butyl 2-furyl butyrate
 methyl cyclopentenolone
5-methyl furfural
 methyl propionate
 methyl tiglate
4-methyl-2,6-dimethoxyphenol
 nutty cyclohexenone
 peanut oxazole
2-pentanoyl furan
2-phenyl propyl butyrate
 prenyl formate
 propyl formate
3-propylidene phthalide
 pyruvaldehyde
 rosefuran
 rum ether
 shoyu furanone
 strawberry furanone
 strawberry furanone acetate
 tetrahydrofurfuryl acetate
 tetrahydrofurfuryl alcohol
2-thiophene thiol
 toffee furanone
 tonka bean absolute
 tonka bean resinoid
(E,E)-2,4-undecadien-1-al
2,4-undecadien-1-al
isovaleraldehyde propylene glycol acetal
 vanilla oleoresin
 vanillyl isobutyrate
(odor and/or flavor) used in :
 bread
 candy cotton candy
 caramel
 coconut
 coffee
 fruit dried fruit
 malt
 maple
 molasses
 yeast
natural occurrence in :
coffee
tobacco



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