lilac acetaldehyde
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IUPAC name :2-(4-methylphenyl)acetaldehyde
InChI :InChI=1/C9H10O/c1-8-2-4-9(5-3-8)6-7-10/h2-5,7H,6H2,1H3
SMILES :CC1=CC=C(C=C1)CC=O
cas number :104-09-6
(EINECS) number :203-173-2
fema number :3071
coe number :130
jecfa number :1023
fl. number :05.042
molar refractivity :40.81 ± 0.3 cm3
parachor :330.3 ± 4.0 cm3
index of refraction :1.512 ± 0.02
surface tension :34.9 ± 3.0 dyne/cm
density :0.987 ± 0.06 g/cm3
polarizability :16.17 ± 0.5 10-24cm3
XlogP : 2.30
molecular weight : 134.1751000 (IUPAC)
formula :C9 H10 O
NMR Predictor :Predict
 
 
export tariff code :unspecified
fda reg :172.515

Suppliers :
Givaudan :Syringa Aldehyde
Odor:  Strong, Floral, Green, Sweet
Penta :p-methylphenylacetaldehyde
Penta :p-tolyl acetaldehyde
50% in p.e.a.
Penta :p-tolylacetaldehyde
50% in d.p.g.
Symrise :Tolyl acetaldehyde para
50% DPG
Vigon :Syringa Aldehyde Tolyl Acetaldehyde

organoleptics :
odor type :green
odor strength :high ,
recommend smelling in a 10.00 % solution or less
odor description :¹
at 10.00 % in dipropylene glycol.  
fresh sweet green cortex lilac narcissus
odor sample from :Givaudan Corporation
substantivity :352  Hour(s)

properties :
appearence :colorless to yellow clear oily liquid
assay : 95.00 to 100.00 %   
Food Chemicals Codex Listed :No
specific gravity :1.01000 to 1.01600 @ 25.00 °C.
pounds per gallon - calc. : 8.404 to 8.454
refractive index :1.53000 to 1.54900 @ 20.00 °C.
melting point : 32.00 to 34.00 °C. @ 760.00 mm Hg
boiling point : 221.00 to 222.00 °C. @ 760.00 mm Hg
acid value : 1.00  max.  KOH/g
flash point : 158.00  °F.  TCC  ( 70.00 °C. )
logP (o/w) : 2.24

safety :
most important hazard(s) :Xi - Irritant
  R 36 - Irritating to eyes.
S 02 - Keep out of the reach of children.
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 - Wear suitable protective clothing.
Human experience : 2 % solution: no irritation or sensitization.
Oral Toxicity(LD50) :
  Oral-Rat    5000.00  mg/kg

Oral-Mouse    >5000.00  mg/kg
(Levenstein, 1975d)

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

safety in use :
Maximised Survey-derived Daily Intakes (MSDI-EU) :5.50 (μg/capita/day)
Maximised Survey-derived Daily Intakes (MSDI-USA) :3.00 (μg/capita/day)
Structure Class :I
 
recommendation for lilac acetaldehyde usage levels up to :
  2.0000 % in the fragrance concentrate.
recommendation for lilac acetaldehyde 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
 
WGK Germany :3
 
 
 
 2-(4-methylphenyl)acetaldehyde
(EINECS) number :203-173-2
chemidplus :000104096
EPA Substance Registry Services :104-09-6

references :
 2-(4-methylphenyl)acetaldehyde
fl. number :05.042
jecfa number :1023
NIST Chemistry WebBook :2182465283
pubchem :197228

Cosmetics :
Cosmetic uses : perfuming agents

other :
reference : Luebke, William tgsc, (1994)¹
CosIng :cosmetic data
synonyms :
4-methyl benzene acetaldehyde
para-methyl phenyl acetaldehyde
(4-methyl phenyl) acetaldehyde
2-(4-methylphenyl)acetaldehyde
 syringa aldehyde
 syringaldehyde
para-tolyl acetaldehyde

soluble in :
 alcohol
 water, 1162 mg/L @ 20C

insoluble in :
 water

stability :
 bath foam
 hair spray
 non-discoloring in most media
 soap

(odor and/or flavor) blends with :
 acetaldehyde benzyl 2-methoxyethyl acetal
 acetaldehyde dihexyl acetal
 acetaldehyde ethyl phenethyl acetal
 acetaldehyde methyl hexyl acetal
 allyl nonanoate
 allyl tiglate
 amber carbinol
isoamyl benzoate
alpha-amyl cinnamaldehyde
alpha-amyl cinnamaldehyde diethyl acetal
 amyl hexanoate
isoamyl salicylate
para-anisaldehyde dimethyl acetal
para-anisyl alcohol
 anisyl propanal / methyl anthranilate schiff's base
 bark carbaldehyde
 benzoin resinoid
 benzyl acetate
 benzyl propionate
 benzyl salicylate
 berry pentadienoate
 bois de rose oil
 buchu mercaptan
 butyl 2-methyl butyrate
 butyl heptanoate
2-isobutyl thiazole
sec-butyl-3-methyl but-2-ene thioate
 cinnamyl alcohol
 citronellol
 citronellyl propionate
 clove bud oil
 clover nitrile
 cognac heptanone
 coriander seed oil
para-cresyl isobutyrate
para-cresyl propionaldehyde
 cumin acetaldehyde
 cyclohexyl ethyl alcohol
gamma-damascone
9-decen-1-ol
3-decen-2-one
9-decenoic acid
 dibutyl sulfide
2,5-diethyl-4-methyl thiazole
 dimethyl benzyl carbinol
2,4-dimethyl cyclohexyl methyl acetate
 dimethyl hydroquinone
2,3-dimethyl pyrazine
6,8-dimethyl-2-nonanol
3,7-dimethyl-6-octenoic acid
 diphenyl oxide
 ethyl (E)-2-hexenoate
 ethyl (E)-4-decenoate
 ethyl laurate
 ethyl methyl-para-tolyl glycidate
2-ethyl pyridine
 ethyl vanillin
2-ethyl-4-butanol
 fir carboxylate
 floral pyranol
3-(2-furyl) acrolein
 gardenia oxide
 geraniol
(E)-geranyl acetone
 geranyl isovalerate
 green acetate
 green dioxolane
 hawthorn ethanol
 heliotropin
(E,E)-2,4-heptadien-1-ol
(Z)-3-hepten-1-ol
3-hepten-2-one
2-heptenoic acid
 heptyl heptanoate
 heptyl isobutyrate
 hexanal dihexyl acetal
 hexanal propylene glycol acetal
(Z)-3-hexen-1-al
3-hexen-1-al
(E)-2-hexen-1-al diethyl acetal
2-hexen-1-al diethyl acetal
(Z)-3-hexen-1-yl (E)-2-hexenoate
(Z)-3-hexen-1-yl 2-methyl-2-pentenoate
(E)-2-hexen-1-yl acetate
(Z)-3-hexen-1-yl acetate
2-hexen-1-yl acetate
(Z)-3-hexen-1-yl anthranilate
(Z)-3-hexen-1-yl hexanoate
(Z)-3-hexen-1-yl isovalerate
(E)-2-hexen-1-yl propionate
(Z)-3-hexen-1-yl salicylate
(E)-2-hexen-1-yl valerate
(Z)-3-hexen-1-yl valerate
1-hexen-3-yl acetate
(Z)-3-hexenoic acid
 hexyl butyrate
alpha-hexyl cinnamaldehyde
 hexyl isobutyrate
 hexyl isovalerate
 hexyl pivalate
 hexyl propionate
 hyacinth ether
 hydroxycitronellal
 ionones
 ivy carbaldehyde
2,4-ivy carbaldehyde
3,5-ivy carbaldehyde
3,6-ivy carbaldehyde
 ivy dioxolane
 leafy acetal
 leafy oxime
 leerall
 lilac acetaldehyde
(±)-lilac aldehyde
 lilac pentanol
 lily propanol
 linalool
laevo-linalool
 linalool oxide
 linalyl acetate
 linalyl hexanoate
 methyl 2-hexenoate
 methyl 4-pentenoate
 methyl cinnamate
 methyl dihydrojasmonate
(E)-methyl geranate
 methyl ionones
 methyl isoeugenol
2-methyl pyrazine
3-(methyl thio) hexanal
 methyl valerate
3-methyl valeric acid
2-methyl-2-penten-1-al
 mimosa absolute
 muguet carboxaldehyde
 musks
beta-naphthyl ethyl ether
 narcissus absolute
 nerol
 nerolidol
 nonanal
 nonanol
 oakmoss absolute
 oakmoss resin
 ocean propanal
 ocean propanal / methyl anthranilate schiff's base
(E,E)-3,5-octadien-2-one
 orangeflower absolute
 papaya isobutyrate
(E)-2-penten-1-al
 peony alcohol
 phenethyl acetal
 phenethyl acetate
 phenethyl alcohol
 phenethyl phenyl acetate
 phenethyl salicylate
 phenoxyacetaldehyde 50% in benzyl alcohol
 phenyl acetaldehyde
 phenyl acetaldehyde diisobutyl acetal
2-phenyl propionaldehyde
3-phenyl propionaldehyde
2-phenyl propyl acetate
2-phenyl propyl alcohol
4-phenyl-2-butyl acetate
 prenyl ethyl ether
 propiophenone
 propyl cinnamate
alpha-isopropyl phenyl acetaldehyde
isopropyl phenyl acetate
isopropyl pyrazine
isopropyl quinoline
 rhodinol
 rose absolute
 rose butanoate
laevo-rose oxide
 sorbyl isobutyrate
(-)-alpha-terpineol
(+)-alpha-terpineol
alpha-terpineol
gamma-terpineol
 tetrahydrofurfuryl cinnamate
 tetrahydrolinalool
 tetrahydromyrcenol
 thiogeraniol
 tiglaldehyde
3,5,5-trimethyl hexanol
10-undecen-1-al
 woody acetate

(odor and/or flavor) used in :
 almond
 cherry
 floral
 fruit
 green
 hyacinth jacinthe
 lilac lilas syringa
 nut
 rose
 tutti frutti
 vanilla

natural occurrence in :
not found in nature



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