(±)-lilac aldehyde
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IUPAC Name - 2-(5-ethenyl-5-methyloxolan-2-yl)propanal
InChI - InChI=1/C10H16O2/c1-4-10(3)6-5-9(12-10)8(2)7-11/h4,7-9H,1,5-6H2,2-3H3
InChIKey - YPZQHCLBLRWNMJ-UHFFFAOYAW
SMILES - CC(C=O)C1CCC(O1)(C)C=C
CAS Number : 67920-63-2
FEMA Number :4058
Molar Refractivity :49.49 ± 0.3 cm3 (est)
Parachor :411.5 ± 6.0 cm3 (est)
Index of Refraction :1.499 ± 0.02 (est)
Surface Tension :35.6 ± 3.0 dyne/cm (est)
Density :0.998 ± 0.06 g/cm3 (est)
Polarizability :19.62 ± 0.5 10-24cm3 (est)
XlogP : 1.60 (est)
Molecular Weight : 168.2328400 (IUPAC) (PT) (112)
Formula :C10 H16 O2
NMR Predictor :Predict
 
 
CAS Number : 51685-39-3
FEMA Number :4058
Molecular Weight : 168.2328400 (IUPAC) (PT) (112)
Formula :C10 H16 O2
 
 
Category :flavor and fragrance agents

EU / EUROPA / FDA / JECFA Information :
JECFA Food Flavoring : 1457
FDA Mainterm : (+/-)-2-(5-METHYL-5-VINYLTETRAHYDROFURAN-2-YL)PROPIONALDEHYDE.

Organoleptics :
Odor Type :floral
Odor Strength :medium
Odor Description:
at 100.00 %.  
floral lilac

Properties :
Appearence :colorless clear liquid
Assay : 90.00 to 100.00 %   sum of isomers
Food Chemicals Codex Listed :No
Specific Gravity :0.95100 to 0.96100 @ 20.00 °C.
Pounds per Gallon - est. : 7.922 to 8.006
Refractive Index :1.45000 to 1.45900 @ 20.00 °C.
Boiling Point : 56.00 to 60.00 °C. @ 1.40 mm Hg
Acid Value : 5.00  max.  KOH/g
Flash Ppoint :not determined
logP (o/w) : 1.44

Safety :
Oral Toxicity(LD50) : 
  Not determined
Dermal Toxicity(LD50) : 
  Not determined
Inhalation Toxicity(LC50) : 
  Not determined
 

Safety in Use :
Category :flavor and fragrance agents
 
Recommendation for (±)-lilac aldehyde fragrance usage levels up to :
  3.0000 % 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).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA on the "LIBRARY" link.
publication number : 21
 average usual ppmaverage maximum ppm
baked goods : 8.0000016.00000
beverages(nonalcoholic) : 3.000006.00000
beverages(alcoholic) : 4.000008.00000
breakfast cereal : --
cheese : --
chewing gum : --
condiments / relishes : --
confectionery froastings : --
egg products : --
fats / oils : --
fish products : --
frozen dairy : 6.0000012.00000
fruit ices : 3.000006.00000
gelatins / puddings : 5.0000010.00000
granulated sugar : --
gravies : --
hard candy : 6.0000012.00000
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 : 5.0000010.00000
soups : --
sugar substitutes : --
sweet sauces : --

Safety References :
EPI System :view
 
 
 
 
2-(5-ethenyl-5-methyloxolan-2-yl)propanal
Chemidplus :067920632
EPA Substance Registry Services :67920-63-2
 
 
Chemidplus :51685-39-3
EPA Substance Registry Services :51685-39-3

References :
Leffingwell :chirality
 
2-(5-ethenyl-5-methyloxolan-2-yl)propanal
NIST Chemistry WebBook :2548556933
Pubchem :732409
Pubchem :51685-39-3

Other :
VCF-Online: VCF Volatile Compounds in Food
FDA Everything Added to Food in the United States (EAFUS)View
Synonyms :
5-ethenyl tetrahydro-alpha,5-dimethyl-2-furan acetaldehyde
2-(5-ethenyl-5-methyloxolan-2-yl)propanal
5-ethenyltetrahydro-alpha,5-dimethyl-2-furanacetaldehyde
(±)-2-(5-methyl-5-vinyl tetrahydrofuran-2-yl) propionaldehyde
(±)-2-(5-methyl-5-vinyltetrahydrofuran-2-yl)propionaldehyde

Soluble in :
 alcohol

Insoluble in :
 water

Natural Occurrence in :    note
data pagedavana oil @ 0.5% S
 honey  
 lilac  



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