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Phenethyl Phenylacetate PEPA aka. Phenyl Ethyl Phenyl Acetate Aroma Chemical
CAS# 102-20-5

Rose, Floral, Honey, Sweet, Balsamic

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Phenethyl Phenylacetate, also known by its chemical name 2-Phenylethyl phenylacetate and the alternate name Benzyl Carbinyl Alpha-Toluate, is a synthetic material that plays an important role in the fragrance industry. Although trace amounts can be found in nature-for example in honey or certain floral essential oils-today’s commercial supply is produced entirely by chemical synthesis. Specifically, it is obtained via esterification of Phenethyl Alcohol and Phenylacetic Acid, yielding a highly versatile ingredient. Historically, it has long been used with the original aim of finding a rose-like fixative with lasting odor, to support or partially replace natural essential oils that are very volatile in the opening. As a result, it became one of the key esters for recreating natural honey nuances and the deep character of Rose Absolute, without relying on costly animal or natural materials. Its physical state shifts with ambient temperature, with a melting point of about 26–28°C. In cooler conditions it appears as white or colorless solid crystals, while gentle warming turns it into a colorless to slightly off-white viscous liquid.

Description

Belonging to the floral and balsamic/resinous families, Phenethyl Phenylacetate performs strongly in the base. Its odor is very heavy, sweet, and deep, characterized by dried rose petals, hyacinth, and a dense honeyed facet. It also carries a soft animalic nuance reminiscent of civet or musk, adding a distinctly warm impression. Although its diffusion is only moderate, its substantivity is extremely high. It is considered one of the most tenacious rose esters, capable of lingering on a blotter for several days. In fragrance formulas, it acts as a solid base note for velvety rose, red rose, and jasmine accords, and it is a core building block for a Honey Accord. As a fixative, it helps anchor lighter floral notes and adds depth to Oriental compositions. In terms of blending behavior: combined with Phenylacetic Acid, it can produce the most realistic honey effect; paired with Citronellol or Geraniol, it yields a complete rose impression from start to finish; and with Indole, the white-floral character and animalic effect are pushed to their maximum. Because it can solidify in cold weather, it is often gently warmed or pre-diluted in solvents such as DEP or DPG to improve handling.

Applications

The applications of Phenethyl Phenylacetate span many areas. In perfumery, it appears frequently in classic florals, Orientals, and Chypre fragrances. In cosmetics and bar soaps, it is highly valued for its excellent chemical stability, its ability to retain odor in alkaline environments, and its strong skin substantivity after washing. It is also used in scented candles and wax melts to create a warm ambience. From a safety perspective, it is generally regarded as GRAS, and it is currently not subject to a specific IFRA concentration limit on toxicological grounds. Typical usage levels are about 1–5% in fine fragrance concentrates and can be higher in soap fragrances. For storage, keep it in a dry place away from light, and gently warm it if it crystallizes due to low temperature. On the market, this material is found in traditional rose-scented bar soaps (such as classic styles of Camay or older Lux formulations) as well as in well-known perfumes. Examples often cited include Jean Patou Joy, where rich natural rose and jasmine effects are supported by phenethyl materials for longevity, and Estée Lauder Youth-Dew, which uses it to add depth and a balsamic sweetness to a classic Oriental style. Finally, perfumery expert Steffen Arctander described this material in detail under entry No. 2538 in Volume II of Perfume and Flavor Chemicals. Under the name Phenylethyl Phenylacetate, he noted a heavy, sweet odor with rose and hyacinth nuances and exceptional tenacity, emphasizing a clear honey note often accompanied by a musky/civet-like undertone. He also highlighted it as an excellent fixative for rose, narcissus, lily, honey, and hyacinth, with strong compatibility with macrocyclic musks, nitro musks, and other crystalline fixatives.

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Technical standards

Physical appearance Liquid or crystalline solid Conform
Color Colorless, or white to pale yellow Conform
Specific Gravity @20˚C 1.079 → 1.082 1.081
Refractive Index @20˚C 1.496 → 1.5 1.4975
Solubility Insoluble in water; soluble in ethanol Conform
Purity ≥ 99.0% 99.2%

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 70.69
methanol 106.09
isopropanol 29.4
water 0.18
ethyl acetate 171.0
n-propanol 51.78
acetone 161.66
n-butanol 37.23
acetonitrile 143.88
DMF 331.93
toluene 54.86
isobutanol 27.17
1,4-dioxane 390.65
methyl acetate 159.06
THF 403.49
2-butanone 149.65
n-pentanol 39.46
sec-butanol 29.37
n-hexane 2.83
ethylene glycol 21.77
NMP 183.86
cyclohexane 5.54
DMSO 555.47
n-butyl acetate 102.47
n-octanol 14.08
chloroform 709.23
n-propyl acetate 106.35
acetic acid 129.82
dichloromethane 727.04
cyclohexanone 202.5
propylene glycol 36.44
isopropyl acetate 80.08
DMAc 388.89
2-ethoxyethanol 110.64
isopentanol 32.57
n-heptane 3.82
ethyl formate 87.95
1,2-dichloroethane 574.35
n-hexanol 38.28
2-methoxyethanol 154.09
isobutyl acetate 63.83
tetrachloromethane 21.13
n-pentyl acetate 38.01
transcutol 697.09
n-heptanol 17.32
ethylbenzene 40.8
MIBK 68.25
2-propoxyethanol 110.92
tert-butanol 40.7
MTBE 44.47
2-butoxyethanol 57.28
propionic acid 87.17
o-xylene 34.88
formic acid 46.57
diethyl ether 93.74
m-xylene 32.8
p-xylene 46.4
chlorobenzene 141.14
dimethyl carbonate 94.62
n-octane 1.64
formamide 121.91
cyclopentanone 281.48
2-pentanone 98.85
anisole 139.06
cyclopentyl methyl ether 94.4
gamma-butyrolactone 337.28
1-methoxy-2-propanol 109.34
pyridine 302.33
3-pentanone 106.01
furfural 290.43
n-dodecane 2.03
diethylene glycol 93.02
diisopropyl ether 18.7
tert-amyl alcohol 32.38
acetylacetone 193.79
n-hexadecane 2.34
acetophenone 123.02
methyl propionate 135.63
isopentyl acetate 84.92
trichloroethylene 822.56
n-nonanol 16.49
cyclohexanol 39.22
benzyl alcohol 81.08
2-ethylhexanol 29.84
isooctanol 17.09
dipropyl ether 62.26
1,2-dichlorobenzene 146.11
ethyl lactate 52.93
propylene carbonate 172.3
n-methylformamide 123.56
2-pentanol 20.72
n-pentane 1.35
1-propoxy-2-propanol 76.99
1-methoxy-2-propyl acetate 123.99
2-(2-methoxypropoxy) propanol 97.43
mesitylene 21.49
ε-caprolactone 158.32
p-cymene 24.09
epichlorohydrin 501.97
1,1,1-trichloroethane 193.35
2-aminoethanol 47.6
morpholine-4-carbaldehyde 236.92
sulfolane 356.45
2,2,4-trimethylpentane 2.44
2-methyltetrahydrofuran 153.29
n-hexyl acetate 51.86
isooctane 1.76
2-(2-butoxyethoxy)ethanol 130.86
sec-butyl acetate 65.56
tert-butyl acetate 82.53
decalin 6.99
glycerin 55.9
diglyme 309.95
acrylic acid 91.15
isopropyl myristate 28.56
n-butyric acid 103.47
acetyl acetate 121.38
di(2-ethylhexyl) phthalate 33.44
ethyl propionate 101.14
nitromethane 362.07
1,2-diethoxyethane 167.69
benzonitrile 104.0
trioctyl phosphate 18.96
1-bromopropane 135.26
gamma-valerolactone 310.25
n-decanol 13.72
triethyl phosphate 55.13
4-methyl-2-pentanol 18.68
propionitrile 102.54
vinylene carbonate 170.2
1,1,2-trichlorotrifluoroethane 246.62
DMS 104.3
cumene 26.81
2-octanol 9.47
2-hexanone 89.21
octyl acetate 32.75
limonene 31.28
1,2-dimethoxyethane 253.71
ethyl orthosilicate 48.45
tributyl phosphate 29.67
diacetone alcohol 88.81
N,N-dimethylaniline 77.88
acrylonitrile 155.96
aniline 77.38
1,3-propanediol 59.59
bromobenzene 144.6
dibromomethane 366.51
1,1,2,2-tetrachloroethane 664.14
2-methyl-cyclohexyl acetate 70.82
tetrabutyl urea 42.29
diisobutyl methanol 22.27
2-phenylethanol 64.55
styrene 61.64
dioctyl adipate 59.4
dimethyl sulfate 158.18
ethyl butyrate 94.46
methyl lactate 68.62
butyl lactate 43.17
diethyl carbonate 79.48
propanediol butyl ether 48.85
triethyl orthoformate 69.83
p-tert-butyltoluene 21.88
methyl 4-tert-butylbenzoate 86.72
morpholine 321.98
tert-butylamine 21.3
n-dodecanol 11.62
dimethoxymethane 223.15
ethylene carbonate 136.96
cyrene 93.92
2-ethoxyethyl acetate 87.76
2-ethylhexyl acetate 67.44
1,2,4-trichlorobenzene 158.48
4-methylpyridine 167.33
dibutyl ether 43.29
2,6-dimethyl-4-heptanol 22.27
DEF 136.07
dimethyl isosorbide 190.13
tetrachloroethylene 318.93
eugenol 81.64
triacetin 102.95
span 80 63.28
1,4-butanediol 25.82
1,1-dichloroethane 265.86
2-methyl-1-pentanol 39.55
methyl formate 108.01
2-methyl-1-butanol 29.63
n-decane 2.87
butyronitrile 77.24
3,7-dimethyl-1-octanol 23.97
1-chlorooctane 15.63
1-chlorotetradecane 8.22
n-nonane 2.31
undecane 2.35
tert-butylcyclohexane 5.77
cyclooctane 1.75
cyclopentanol 43.73
tetrahydropyran 207.99
tert-amyl methyl ether 38.61
2,5,8-trioxanonane 215.6
1-hexene 22.1
2-isopropoxyethanol 71.42
2,2,2-trifluoroethanol 51.16
methyl butyrate 128.99

Scent© AI

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  • CAS NUMBER

    102-20-5

  • FAMILIES

    Floral

  • BRAND

    Scent.vn

  • EVAPORATION RATE

    Ultra slow

  • Odor impact

    Medium est.

  • FLASH POINT

    165.05 ˚C est.

base
Rose
Floral
Honey
Sweet
Balsamic
Recommendation
No restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
No restriction Category 7A
Rinse-off products applied to the hair with some hand contact
No restriction
Category 2
Products applied to the axillae
No restriction Category 7B
Leave-on products applied to the hair with some hand contact
No restriction
Category 3
Products applied to the face/body using fingertips
No restriction Category 8
Products with significant anogenital exposure
No restriction
Category 4
Products related to fine fragrance
No restriction Category 9
Products with body and hand exposure, primarily rinse off
No restriction
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
No restriction Category 10A
Household care products with mostly hand contact
No restriction
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
No restriction Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
No restriction
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
No restriction Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
No restriction
Category 5D
Baby Creams, baby Oils and baby talc
No restriction Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
No restriction
Category 6
Products with oral and lip exposure
No restriction Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
No restriction
  • All orders will be processed within 1-2 business days from the time the order is confirmed.
  • Free shipping is available for international retail orders valued at 500 USD or more.
  • Delivery time is 1-3 business days for local areas, 3-7 days for suburban and nationwide deliveries, and 1-4 weeks for international orders.
  • You have 30 days from the date of receipt to initiate the return process.
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  • 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.
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  • Safety Data Sheet (SDS)

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