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Aldehyde C-14 Peach aka. Gamma Undecalactone Aroma Chemical
CAS# 104-67-6

Fatty, Sweet, Creamy, Fruity, Coconut

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Aldehyde C-14 Peach, also known as Gamma Undecalactone (CAS# 104-67-6), is a key material in the fruity lactone family, bringing a signature ripe peach note that is sweet, creamy and velvety. It evokes the impression of juicy peach flesh and smooth peel, with subtle nuances of apricot, milky facets and a soft fatty undertone that reinforce a realistic, mouthwatering stone-fruit effect.

In perfumery, Gamma Undecalactone is widely used to build peach, apricot, plum and various tropical fruit accords, as well as to soften and round floral themes – especially jasmine, orange blossom, ylang-ylang and other white florals. At low dosage, it provides a gentle fruity halo that makes floral compositions more friendly, modern and diffusive; at higher levels in gourmand or fruity concepts, it amplifies nectar-like richness, giving the fragrance a luscious, almost edible texture.

This ingredient has considerable odor strength, so it is typically dosed at low concentrations in the concentrate. Despite its power, Gamma Undecalactone remains smooth and non-harsh, blending easily with other lactones (creamy, coconut-type notes), ionones, vanillin, ethyl maltol, as well as the classic fruity palette including gamma-decalactone, damascones and traditional fruity esters.

Gamma Undecalactone performs well in alcoholic fine fragrances, body mists and personal care products with fruity–creamy character, and can also be used in home fragrance applications such as room sprays and scented waxes, depending on the solvent system and allowed dosage. It is considered an almost indispensable building block for perfumers working on modern peach–apricot signatures that are soft, approachable and highly commercial.

Technical standards

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 6744.11
methanol 6891.94
isopropanol 5764.53
water 0.12
ethyl acetate 6649.93
n-propanol 4494.7
acetone 10682.26
n-butanol 3958.24
acetonitrile 6083.06
DMF 4903.27
toluene 1597.98
isobutanol 3521.19
1,4-dioxane 5700.42
methyl acetate 4142.83
THF 7970.87
2-butanone 5908.75
n-pentanol 2654.03
sec-butanol 3826.76
n-hexane 529.21
ethylene glycol 482.7
NMP 2854.25
cyclohexane 598.97
DMSO 7040.95
n-butyl acetate 4051.21
n-octanol 812.4
chloroform 8984.63
n-propyl acetate 3926.37
acetic acid 3226.94
dichloromethane 8670.85
cyclohexanone 6382.48
propylene glycol 1021.57
isopropyl acetate 4354.32
DMAc 2962.65
2-ethoxyethanol 2957.2
isopentanol 3563.9
n-heptane 153.02
ethyl formate 2664.46
1,2-dichloroethane 5353.79
n-hexanol 2298.57
2-methoxyethanol 4812.51
isobutyl acetate 2284.84
tetrachloromethane 980.55
n-pentyl acetate 1925.37
transcutol 9428.32
n-heptanol 784.06
ethylbenzene 768.25
MIBK 2813.84
2-propoxyethanol 3606.98
tert-butanol 5335.27
MTBE 6074.83
2-butoxyethanol 1658.93
propionic acid 2788.12
o-xylene 745.25
formic acid 668.42
diethyl ether 6202.27
m-xylene 961.69
p-xylene 984.81
chlorobenzene 2439.94
dimethyl carbonate 929.44
n-octane 68.46
formamide 1233.0
cyclopentanone 5473.66
2-pentanone 5512.16
anisole 1845.59
cyclopentyl methyl ether 3781.15
gamma-butyrolactone 5459.43
1-methoxy-2-propanol 3979.2
pyridine 5040.64
3-pentanone 2874.13
furfural 3486.33
n-dodecane 56.28
diethylene glycol 1863.26
diisopropyl ether 1444.76
tert-amyl alcohol 3623.19
acetylacetone 4866.35
n-hexadecane 69.68
acetophenone 1505.86
methyl propionate 3404.68
isopentyl acetate 3299.43
trichloroethylene 8240.61
n-nonanol 669.26
cyclohexanol 2997.87
benzyl alcohol 1401.65
2-ethylhexanol 1219.72
isooctanol 674.39
dipropyl ether 1780.68
1,2-dichlorobenzene 1843.4
ethyl lactate 921.23
propylene carbonate 2875.42
n-methylformamide 2665.82
2-pentanol 2722.95
n-pentane 325.0
1-propoxy-2-propanol 2603.07
1-methoxy-2-propyl acetate 2904.9
2-(2-methoxypropoxy) propanol 1448.74
mesitylene 608.07
ε-caprolactone 4701.42
p-cymene 386.17
epichlorohydrin 6299.31
1,1,1-trichloroethane 4813.93
2-aminoethanol 1497.97
morpholine-4-carbaldehyde 3413.14
sulfolane 5022.72
2,2,4-trimethylpentane 154.07
2-methyltetrahydrofuran 6383.17
n-hexyl acetate 2435.57
isooctane 150.35
2-(2-butoxyethoxy)ethanol 2206.26
sec-butyl acetate 2493.99
tert-butyl acetate 3659.07
decalin 267.81
glycerin 1034.29
diglyme 3809.81
acrylic acid 1662.55
isopropyl myristate 727.67
n-butyric acid 5210.67
acetyl acetate 2775.9
di(2-ethylhexyl) phthalate 583.38
ethyl propionate 2715.68
nitromethane 5415.55
1,2-diethoxyethane 3820.75
benzonitrile 2249.23
trioctyl phosphate 407.9
1-bromopropane 4109.59
gamma-valerolactone 6120.19
n-decanol 461.05
triethyl phosphate 561.28
4-methyl-2-pentanol 1305.71
propionitrile 4292.82
vinylene carbonate 2416.17
1,1,2-trichlorotrifluoroethane 3243.59
DMS 1550.28
cumene 500.68
2-octanol 596.08
2-hexanone 3569.09
octyl acetate 865.13
limonene 687.65
1,2-dimethoxyethane 5440.38
ethyl orthosilicate 569.88
tributyl phosphate 605.08
diacetone alcohol 2752.71
N,N-dimethylaniline 928.24
acrylonitrile 4214.21
aniline 2226.12
1,3-propanediol 2331.48
bromobenzene 2812.29
dibromomethane 6010.49
1,1,2,2-tetrachloroethane 6315.21
2-methyl-cyclohexyl acetate 1207.97
tetrabutyl urea 692.6
diisobutyl methanol 642.56
2-phenylethanol 1339.13
styrene 1249.06
dioctyl adipate 991.07
dimethyl sulfate 1190.94
ethyl butyrate 2010.02
methyl lactate 1142.42
butyl lactate 1209.95
diethyl carbonate 1121.16
propanediol butyl ether 1469.91
triethyl orthoformate 1132.27
p-tert-butyltoluene 389.92
methyl 4-tert-butylbenzoate 1057.75
morpholine 7910.05
tert-butylamine 3170.03
n-dodecanol 328.57
dimethoxymethane 3549.68
ethylene carbonate 2396.16
cyrene 918.61
2-ethoxyethyl acetate 2372.07
2-ethylhexyl acetate 2175.1
1,2,4-trichlorobenzene 2071.28
4-methylpyridine 4739.18
dibutyl ether 1751.49
2,6-dimethyl-4-heptanol 642.56
DEF 4107.77
dimethyl isosorbide 1962.7
tetrachloroethylene 3713.77
eugenol 1023.53
triacetin 1764.23
span 80 1239.2
1,4-butanediol 911.24
1,1-dichloroethane 6632.78
2-methyl-1-pentanol 2218.61
methyl formate 1656.32
2-methyl-1-butanol 2944.03
n-decane 110.34
butyronitrile 4934.44
3,7-dimethyl-1-octanol 974.3
1-chlorooctane 612.91
1-chlorotetradecane 210.88
n-nonane 109.43
undecane 75.41
tert-butylcyclohexane 250.34
cyclooctane 150.08
cyclopentanol 3049.65
tetrahydropyran 7647.58
tert-amyl methyl ether 2888.39
2,5,8-trioxanonane 2280.79
1-hexene 2458.58
2-isopropoxyethanol 2281.87
2,2,2-trifluoroethanol 699.32
methyl butyrate 4122.28

Scent© AI

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  • CAS NO.

    104-67-6

  • OLFACTIVE FAMILY

    Fruity

  • BRAND

    Kao

Olfactory Pyramid

base

Notes

Fatty
Sweet
Creamy
Fruity
Coconut

IFRA standard 51

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

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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.
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  • Safety Data Sheet (SDS)

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