ketoisophorone
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Notes :
Blends well with ozone and woody notes.
 
Right Click Picture For More Options. (Safari 1.2 (v125) Compatible).
 
IUPAC name :2,6,6-trimethylcyclohex-2-ene-1,4-dione
InChI :InChI=1/C9H12O2/c1-6-4-7(10)5-9(2,3)8(6)11/h4H,5H2,1-3H3
InChIKey :AYJXHIDNNLJQDT-UHFFFAOYAJ
SMILES :CC1=CC(=O)CC(C1=O)(C)C
cas number :1125-21-9
(EINECS) number :214-406-2
beilstein number :2207030
fema number :3421
coe number :11200
jecfa number :1857
fl. number :07.109
molar refractivity :41.56 ± 0.3 cm3
parachor :351.3 ± 6.0 cm3
index of refraction :1.469 ± 0.02
surface tension :30.8 ± 3.0 dyne/cm
density :1.020 ± 0.06 g/cm3
polarizability :16.47 ± 0.5 10-24cm3
XlogP : 0.10
molecular weight : 152.1903800 (IUPAC)
formula :C9 H12 O2
BioActivity Analysis :48414877
NMR Predictor :Predict
 
 
export tariff code :2914.69
fda reg :unspecified

Suppliers :
Apple :Oxoisophorone
Berje :ketoisophorone
Penta :2,6,6-trimethyl cyclohex-2-ene-1,4-dione
Sigma-Aldrich-SAFC :4-Oxoisophorone
≥98%, Kosher, FG
Odor:  musty; woody; sweet
Vigon :Ketoisophorone Pure
Odor:  FOOD-LIKE, FRUITY

organoleptics :
odor type :musty
odor strength :medium ,
recommend smelling in a 1.00 % solution or less
odor description :
at 1.00 % in dipropylene glycol.  
musty woody sweet tea tobacco leaf

properties :
appearence :white to yellowish tan green solid or liquid
assay : 98.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.91800 @ 25.00 °C.
refractive index :1.49100 @ 20.00 °C.
melting point : 23.00 to 28.00 °C. @ 760.00 mm Hg
boiling point : 92.00 to 94.00 °C. @ 11.00 mm Hg
boiling point : 222.00 °C. @ 760.00 mm Hg
flash point : 205.00  °F.  TCC  ( 96.11 °C. )
logP (o/w) : 0.76

safety :
most important hazard(s) :Xn - Harmful.
  R 22 - Harmful if swallowed.
R 38 - Irritating to skin.
R 43 - May cause sensitisation by skin contact.
S 02 - Keep out of the reach of children.
S 20/21 - When using do not eat, drink or smoke.
S 24/25 - Avoid contact with skin and eyes.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 37/39 - Wear suitable gloves and eye/face protection.
Oral Toxicity(LD50) :
  Not determined
Dermal Toxicity(LD50) :
  Not determined
Inhalation Toxicity(LC50) :
  Not determined
 

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :50.00 (μg/capita/day)
Structure Class :II
 
recommendation for ketoisophorone usage levels up to :
  2.0000 % in the fragrance concentrate.
recommendation for ketoisophorone usage levels up to :
  40.0000 ppm in the flavor.

safety references :
European Food Safety Athority(efsa) :Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...
EPI System :view
Canada Domestic Sub. List :Yes
EPA Chem. Sub. Inventory : Yes
WISER :UN 2811
 
WGK Germany :3
 
 
 
 2,6,6-trimethylcyclohex-2-ene-1,4-dione
(EINECS) number :214-406-2
chemidplus :001125219
EPA Substance Registry Services :1125-21-9

references :
 2,6,6-trimethylcyclohex-2-ene-1,4-dione
fl. number :07.109
jecfa number :1857
NIST Chemistry WebBook :3856319016
pubchem :203672

Cosmetics :
Cosmetic uses : perfuming agents

other :
CosIng :cosmetic data
VCF-Online: VCF Volatile Compounds in Food
synonyms :
 cetotabac
oxopholone
4-oxo-alpha-isophorone
4-oxoisophorone
6-oxoisophorone
keto-isophorone
2,6,6-trimethyl cyclohex-2-ene-1,4-dione
3,5,5-trimethyl-2-cyclohexene-1,4-dione
2,6,6-trimethylcyclohex-2-ene-1,4-dione

soluble in :
 alcohol
 water, slightly

insoluble in :
 water

(odor and/or flavor) blends with :
6-acetoxydihydrotheaspirane
2-acetyl pyridine
 amber decatriene
 ambrette seed absolute
alpha-amyl cinnamyl isovalerate
 amyl phenyl acetate
 basil oleoresin sweet
 beeswax absolute
 bergamot oil bergaptene free
beta-bisabolol
 boronia butenal
 bran absolute
 cassia oleoresin
alpha-cedrene epoxide
 cedrol methyl ether
 chamomile flower oil germany
 champaca absolute
 champaca flower oil
 clary sage absolute
 clary sage oil
para-cresyl isovalerate
(-)-cubenol
 cyclohexanone diethyl acetal
 cyperus root oil
(E)-beta-damascone
(Z)-beta-damascone
beta-damascone
delta-damascone
 decanal
 deertongue absolute
N,N-diethyl octanamide
 dimethyl benzyl carbinyl propionate
2,4-dimethyl thiazole
2-dodecanone
 ethyl 3-hydroxyhexanoate
3-ethyl pyridine
2-ethyl-1-hexanol
 fig leaf absolute
 genet absolute
 geosmin
 geosmin
 geranyl formate
 guaiacyl phenyl acetate
(-)-guaiol
 guaiyl acetate
 hay absolute
 heptyl butyrate
 herbal undecanone
gamma-hexalactone
2'-hydroxyacetophenone
isolongifolene ketone
 mate absolute
para-menth-3-en-1-ol
 methyl 2-furoate
 methyl benzoxole
alpha-isomethyl ionone (90% min.)
 methyl nicotinate
6-methyl quinoline
 mint lactone
 myrrh absolute
 ozone propanal
 paprika oleoresin
 phenethyl isobutyrate
 phenyl acetic acid
 propenyl guaethol
2-propyl pyridine
 saffron indenone
 saffron resinoid
 safranal
 tea acetate
 tetrahydrolinalool
 tetrahydrolinalyl acetate
 theaspirane
 timber propanol
 tobacco butenal
 tobacco concrete
 tobacco cyclohexenone
 tobacco dodecane
 tobacco flower absolute
 tobacco leaf absolute
 tobacco nonene
 tobacco notes
 tonka undecanone
(±)-2,4,8-trimethyl-7-nonen-2-ol
10-undecen-1-ol
 verbena absolute france
 woodruff absolute
 woody dioxolane
 woody ether

(odor and/or flavor) used in :
 amber
 balsam
 cherry
 citrus
 honey miel
 molasses
 oriental
 ozone
 patchouli
 raspberry
 tea
 tobacco tabac tabaco leaf
 woody

natural occurrence in :
data pagechampaca concrete @ 0.05%
lemon balm
saffron
shrimp
tea
tobacco smoke



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