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Phenyl Acetaldehyde Aroma Chemical
CAS# 122-78-1

Green, Floral, Sweet, Hyacinth, Honey

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Phenyl Acetaldehyde (CAS 122-78-1) is a colorless to pale yellow liquid aroma chemical with a distinctly floral scent reminiscent of hyacinth and rose, enriched by honey-like, green, and slightly spicy nuances. It occurs naturally in various essential oils and botanical materials such as rose, orange blossom, and cocoa, giving it a very “natural” and lifelike character in fragrance compositions.

In perfumery, Phenyl Acetaldehyde is used from the top into the heart of the fragrance, helping to brighten and sharpen floral accords, especially rose, hyacinth, lilac, jasmine, and mimosa, while adding a characteristic soft honey effect. At low dosage it can create interesting accents in fruity and gourmand notes, as well as bring warm depth to chypre, oriental, tobacco, and amber themes.

Phenyl Acetaldehyde blends well with classic floral ingredients such as phenethyl alcohol, benzyl acetate, linalool, linalyl acetate, hydroxycitronellal, ionones, and certain aliphatic aldehydes, enhancing diffusion and naturalness for the overall fragrance. It is readily soluble in perfumer’s alcohol and standard fragrance solvents, making it suitable for fine fragrances, personal care products (shower gels, shampoos, lotions), as well as home care and air care products with floral, honey, or fruity signatures. As an aldehyde, it should be stored tightly closed, away from light and high temperatures to minimize oxidation and maintain olfactory stability during storage and use.

Technical standards

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 1056.7
methanol 916.97
isopropanol 612.8
water 3.0
ethyl acetate 2295.51
n-propanol 777.79
acetone 2679.8
n-butanol 545.35
acetonitrile 1997.06
DMF 2398.09
toluene 310.57
isobutanol 450.0
1,4-dioxane 2421.05
methyl acetate 1993.78
THF 2028.8
2-butanone 1724.96
n-pentanol 310.18
sec-butanol 467.09
n-hexane 43.29
ethylene glycol 334.62
NMP 1514.95
cyclohexane 77.28
DMSO 3387.67
n-butyl acetate 629.78
n-octanol 140.11
chloroform 2209.55
n-propyl acetate 655.4
acetic acid 1168.96
dichloromethane 2921.63
cyclohexanone 1549.29
propylene glycol 311.4
isopropyl acetate 698.14
DMAc 1070.0
2-ethoxyethanol 597.49
isopentanol 375.37
n-heptane 54.35
ethyl formate 846.58
1,2-dichloroethane 2386.46
n-hexanol 398.79
2-methoxyethanol 1330.37
isobutyl acetate 304.12
tetrachloromethane 226.22
n-pentyl acetate 230.86
transcutol 2666.57
n-heptanol 132.01
ethylbenzene 164.4
MIBK 465.28
2-propoxyethanol 749.83
tert-butanol 543.4
MTBE 501.49
2-butoxyethanol 334.54
propionic acid 1023.13
o-xylene 163.69
formic acid 369.54
diethyl ether 1214.4
m-xylene 184.09
p-xylene 171.85
chlorobenzene 590.48
dimethyl carbonate 605.82
n-octane 18.46
formamide 910.08
cyclopentanone 2212.64
2-pentanone 1279.38
anisole 507.78
cyclopentyl methyl ether 846.49
gamma-butyrolactone 2634.3
1-methoxy-2-propanol 873.45
pyridine 1456.46
3-pentanone 1065.95
furfural 1411.34
n-dodecane 16.55
diethylene glycol 612.51
diisopropyl ether 207.89
tert-amyl alcohol 350.18
acetylacetone 1345.63
n-hexadecane 18.91
acetophenone 388.66
methyl propionate 1636.85
isopentyl acetate 421.53
trichloroethylene 3197.71
n-nonanol 124.51
cyclohexanol 421.19
benzyl alcohol 281.24
2-ethylhexanol 196.47
isooctanol 105.18
dipropyl ether 411.93
1,2-dichlorobenzene 464.57
ethyl lactate 224.85
propylene carbonate 1010.02
n-methylformamide 1536.19
2-pentanol 340.46
n-pentane 43.61
1-propoxy-2-propanol 461.88
1-methoxy-2-propyl acetate 594.47
2-(2-methoxypropoxy) propanol 335.28
mesitylene 107.31
ε-caprolactone 1141.57
p-cymene 90.78
epichlorohydrin 2678.37
1,1,1-trichloroethane 1275.4
2-aminoethanol 492.37
morpholine-4-carbaldehyde 1462.05
sulfolane 2125.74
2,2,4-trimethylpentane 21.12
2-methyltetrahydrofuran 1525.06
n-hexyl acetate 363.11
isooctane 20.24
2-(2-butoxyethoxy)ethanol 513.53
sec-butyl acetate 342.52
tert-butyl acetate 520.57
decalin 41.45
glycerin 386.96
diglyme 1112.44
acrylic acid 832.12
isopropyl myristate 134.99
n-butyric acid 1141.77
acetyl acetate 899.57
di(2-ethylhexyl) phthalate 110.71
ethyl propionate 671.51
nitromethane 3205.79
1,2-diethoxyethane 706.58
benzonitrile 434.51
trioctyl phosphate 89.51
1-bromopropane 883.67
gamma-valerolactone 2059.0
n-decanol 95.89
triethyl phosphate 151.99
4-methyl-2-pentanol 159.54
propionitrile 1054.37
vinylene carbonate 849.53
1,1,2-trichlorotrifluoroethane 1017.5
DMS 499.71
cumene 95.12
2-octanol 82.09
2-hexanone 550.57
octyl acetate 173.75
limonene 153.01
1,2-dimethoxyethane 1072.65
ethyl orthosilicate 141.02
tributyl phosphate 120.99
diacetone alcohol 561.07
N,N-dimethylaniline 223.62
acrylonitrile 1369.41
aniline 439.95
1,3-propanediol 616.01
bromobenzene 620.0
dibromomethane 1525.93
1,1,2,2-tetrachloroethane 2050.76
2-methyl-cyclohexyl acetate 239.44
tetrabutyl urea 156.35
diisobutyl methanol 119.78
2-phenylethanol 291.86
styrene 242.76
dioctyl adipate 208.24
dimethyl sulfate 816.43
ethyl butyrate 477.25
methyl lactate 444.37
butyl lactate 188.96
diethyl carbonate 301.09
propanediol butyl ether 292.91
triethyl orthoformate 233.93
p-tert-butyltoluene 84.44
methyl 4-tert-butylbenzoate 263.9
morpholine 2248.24
tert-butylamine 283.78
n-dodecanol 75.22
dimethoxymethane 1433.48
ethylene carbonate 759.56
cyrene 273.55
2-ethoxyethyl acetate 461.56
2-ethylhexyl acetate 309.53
1,2,4-trichlorobenzene 514.83
4-methylpyridine 923.95
dibutyl ether 249.78
2,6-dimethyl-4-heptanol 119.78
DEF 1201.68
dimethyl isosorbide 535.5
tetrachloroethylene 1191.94
eugenol 257.98
triacetin 392.97
span 80 259.32
1,4-butanediol 206.58
1,1-dichloroethane 1791.61
2-methyl-1-pentanol 231.53
methyl formate 1199.44
2-methyl-1-butanol 350.4
n-decane 25.53
butyronitrile 761.93
3,7-dimethyl-1-octanol 145.3
1-chlorooctane 120.53
1-chlorotetradecane 50.42
n-nonane 25.23
undecane 20.43
tert-butylcyclohexane 36.31
cyclooctane 25.67
cyclopentanol 584.35
tetrahydropyran 1804.29
tert-amyl methyl ether 331.19
2,5,8-trioxanonane 655.3
1-hexene 214.48
2-isopropoxyethanol 379.91
2,2,2-trifluoroethanol 410.86
methyl butyrate 807.48

Scent© AI

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  • CAS NUMBER

    122-78-1

  • FAMILIES

    Green

  • BRAND

    Scent.vn

  • EVAPORATION RATE

    Moderate

  • Odor impact

    High est.

  • FLASH POINT

    356.4 ˚C est.

Olfactory Pyramid

heart

Notes

Green
Floral
Sweet
Hyacinth
Honey

IFRA standard 51

Recommendation
Restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0.045 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0.52 %
Category 2
Products applied to the axillae
 0.014 % Category 7B
Leave-on products applied to the hair with some hand contact
 0.52 %
Category 3
Products applied to the face/body using fingertips
 0.27 % Category 8
Products with significant anogenital exposure
 0.021 %
Category 4
Products related to fine fragrance
 0.25 % Category 9
Products with body and hand exposure, primarily rinse off
 0.49 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 0.064 % Category 10A
Household care products with mostly hand contact
 0.49 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0.064 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 1.8 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0.064 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0.021 %
Category 5D
Baby Creams, baby Oils and baby talc
 0.021 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0.021 %
Category 6
Products with oral and lip exposure
 0.15 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 No restriction

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  • You have 30 days from the date of receipt to initiate the return process.
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Certificates of Quality

  • Certificate of Analysis (COA)

    Provides information on the physical and chemical properties of the product.
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  • IFRA Certificate of Conformity

    Sets safety standards and guidelines for the product in manufacturing.
    Download  

  • Safety Data Sheet (SDS)

    Provides important safety guidelines for transporting, storing, and using the product.
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