5-methyl-5-hexen-2-one
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IUPAC name :5-methylhex-5-en-2-one
InChI :InChI=1/C7H12O/c1-6(2)4-5-7(3)8/h1,4-5H2,2-3H3
InChIKey :VBCIOOKAKHGVMI-UHFFFAOYAL
SMILES :CC(=C)CCC(=O)C
cas number :3240-09-3
(EINECS) number :221-807-6
fema number :3365
coe number :11150
jecfa number :1119
fl. number :07.100
molar refractivity :34.07 ± 0.3 cm3
parachor :300.8 ± 4.0 cm3
index of refraction :1.414 ± 0.02
surface tension :23.8 ± 3.0 dyne/cm
density :0.824 ± 0.06 g/cm3
polarizability :13.50 ± 0.5 10-24cm3
XlogP : 1.30
molecular weight : 112.1695800
formula :C7 H12 O
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :unspecified

Suppliers :
Penta :5-methyl-5-hexen-2-one
Sigma-Aldrich-SAFC :5-Methyl-5-hexen-2-one
99%

organoleptics :
odor type :fatty
odor strength :medium ,
recommend smelling in a 10.00 % solution or less
odor description :¹
at 10.00 % in dipropylene glycol.  
green weedy foliage vegetable
substantivity :1 hour(s) at 100.00 %

properties :
appearence :colorless to pale yellow clear liquid
assay : 99.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :0.84750 @ 25.00 °C.
refractive index :1.42790 @ 25.00 °C.
boiling point : 149.00 to 150.00 °C. @ 760.00 mm Hg
flash point : 108.00  °F.  TCC  ( 42.22 °C. )
logP (o/w) : 1.65

safety :
most important hazard(s) :Xn - Harmful.
  R 10 - Flammable.
R 22 - Harmful if swallowed.
R 41 - Risk of serious damage to eyes.
S 02 - Keep out of the reach of children.
S 16 - Keep away from sources of ignition - No Smoking.
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 36/37/39 - Wear suitable clothing, 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) :ND (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :0.30 (μg/capita/day)
 
recommendation for 5-methyl-5-hexen-2-one usage levels up to :
  1.0000 % in the fragrance concentrate.
recommendation for 5-methyl-5-hexen-2-one usage levels up to :
  2.0000 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 1224
 
WGK Germany :2
 
 
 
 5-methylhex-5-en-2-one
(EINECS) number :221-807-6
chemidplus :003240093
EPA Substance Registry Services :3240-09-3
dtp/nci :21640

references :
 5-methylhex-5-en-2-one
fl. number :07.100
jecfa number :1119
NIST Chemistry WebBook :3743265675
pubchem :203922

other :
reference : Luebke, William tgsc, (2007)¹
synonyms :
5-methyl hex-5-en-2-one
5-methylhex-5-en-2-one

soluble in :
 alcohol

insoluble in :
 water

(odor and/or flavor) blends with :
 abies alba mill oil
alpha-benzylidene methional
 cassie absolute
 cassie concrete
homocuminic aldehyde
 dihydroxyacetophenone
2-ethyl-4,5-dimethyl oxazole
 galbanum resinoid
 gardenia oxide
 geranium concrete
 grapefruit menthane
 green hexanal
 green methanoindene
 hemlock western oil
(E)-2-hepten-1-al
(Z)-4-hepten-1-al
 heptyl phenyl acetate
 herbal ketone
(E)-4-hexen-1-al
(Z)-3-hexen-1-ol
4-hexen-1-ol
(Z)-3-hexen-1-yl (E)-crotonate
alpha-hexyl cinnamaldehyde dimethyl acetal
 hexyl heptanoate
 hexyl phenyl acetate
 hyacinth absolute
 hyacinth butanal
 ivy leaf absolute
 leafy oxime
 methyl benzyl disulfide
2-methyl thiazole
4-(methyl thio) butanol
3-(methyl thio) hexanol
3-(5-methyl-2-furyl) butanal
 mistletoe absolute
2-nonanone
(Z)-6-nonen-1-ol
 oakmoss concrete
2,4-octadien-1-al
2-octen-1-ol
1-penten-3-ol
 phenethyl cinnamate
 phenethyl isopropyl ether
 phenyl acetaldehyde dimethyl acetal
3-phenyl propionaldehyde
(R)-2-phenyl propyl alcohol
4-phenyl-2-butanol
 pine needle oil scotch siberia
 pinus sylvestris l. needle oil estonia
 pinus sylvestris l. needle oil yugoslavia
2-propyl pyrazine
isopropyl quinoline
isopropyl tiglate
2-isopropyl-3-(methyl thio) pyrazine
 propylene glycol acetone ketal
 spruce needle absolute
 styralyl propionate
3-tetrahydrothiophenone
3,5,5-trimethyl hexanol
 tropical thiazole

(odor and/or flavor) used in :
 balsam
 citrus
 fat
 green
 herbal
 tangerine

natural occurrence in :
not found in nature



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