coumane
 
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IUPAC name :1a,7b-dihydrocyclopropa[c]chromen-2(1H)-one
InChI :InChI=1/C10H8O2/c11-10-8-5-7(8)6-3-1-2-4-9(6)12-10/h1-4,7-8H,5H2
InChIKey :BSNSPNHWEMGXBT-UHFFFAOYAL
SMILES :C1C2C1C(=O)OC3=CC=CC=C23
cas number :5617-64-1
fema number :4270
molar refractivity :42.82 ± 0.3 cm3
parachor :324.5 ± 6.0 cm3
index of refraction :1.615 ± 0.02
surface tension :49.1 ± 3.0 dyne/cm
density :1.306 ± 0.06 g/cm3
polarizability :16.97 ± 0.5 10-24cm3
xlogp : 1.40
molecular weight : 160.1693200
formula :C10 H8 O2
 
 
fda reg :unspecified h. number :unspecified
organoleptics : 
odor type :coumarinic
odor description :
coumarin nutty vanilla
properties : 
assay : 98.00 - 100.00 %   
Food Chemicals Codex Listed :No
boiling point : 245.00 - 246.00 °C. @ 760.00 mm Hg
logp : 1.66
safety : 
Oral Toxicity(LD50) : Not determined
Dermal Toxicity(LD50) : Not determined
  
flash point ( Deg. F. ) : 203.00  °F.  TCC  ( 95.00 °C. )
  
recommendation for coumane usage levels up to :
  2.0000 % in the fragrance concentrate.
  
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
publication number : 23.
4270 average usual ppmaverage maximum ppm
baked goods : 11.0000020.00000
beverages(nonalcoholic) : 2.000004.00000
beverages(alcoholic) : 1.000005.00000
breakfast cereal : --
cheese : --
chewing gum : --
condiments / relishes : --
confectionery froastings : --
egg products : --
fats / oils : --
fish products : --
frozen dairy : 6.0000015.00000
fruit ices : --
gelatins / puddings : 7.0000015.00000
granulated sugar : --
gravies : --
hard candy : 11.0000040.00000
imitation dairy : --
instant coffee / tea : --
jams / jellies : --
meat products : --
milk products : --
nut products : --
other grains : --
poultry : --
processed fruits : --
processed vegetables : --
reconstituted vegetables : --
seasonings / flavors : --
snack foods : --
soft candy : 10.0000020.00000
soups : --
sugar substitutes : --
sweet sauces : --
safety links : 
chemidplus :5617-64-1
epa-srs :5617-64-1
  
other : 
 
references : 
pubchem :36457224
  
synonyms :
 coumane
 cyclopropyl coumarin
1,1a-dihydrocyclopropa(c)chromen-2(7bH)-one
2-(2-hydroxyphenyl) cyclopropane carboxylic acid delta-lactone
soluble in :
 alcohol
insoluble in :
 water
stability :
(odor and/or flavor) blends with :
 coconut naphthalenone
para-cresyl laurate
(R)-dihydroactinidiolide
 fig leaf absolute
 methyl coumarins
 tonka furanone
 tonkavert
 vanillyl alcohol
(odor and/or flavor) used in :
 benzoin
 deertongue
 fig
 flouve
 flouve blossom
 grass sweet grass
 hay new mown hay foin coupe
 heliotrope
 immortelle helichrysum everlasting
 leaf autumn leaf
 marshmallow
 peru balsam
 straw
 tobacco tabac tabaco
 tobacco tabac tabaco flower
 tobacco tabac tabaco leaf
 tonka
 vanilla
 wet fields
natural occurrence in :
not found in nature



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