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Aldehyde C-11 Undecylenic aka. 10-undecenal Aroma Chemical
CAS# 112-45-8

Citrus, Waxy, Fatty, Aldehydic, Floral

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Aldehyde C-11 Undecylenic (10-undecenal, CAS# 112-45-8) is a long-chain aliphatic aldehyde with a sharp, highly diffusive aldehydic character that instantly “switches on” the top of a fragrance. Its odour profile combines zesty citrus-peel facets with a green, slightly metallic nuance, a light fatty–waxy feel and a clean, soft floral impression reminiscent of sun-dried, freshly laundered linens. At very low levels, it creates a refined “premium soap” effect and a sense of airy cleanliness, making any composition feel brighter and more contemporary.

In perfumery, Aldehyde C-11 Undecylenic is a key material for aldehydic, citrus, soapy and “clean linen” accords. It pairs particularly well with orange, lemon, bergamot, petitgrain, galbanum, muguet, rose, jasmine and ozonic–marine notes, helping to build sparkling, luminous top notes with strong diffusion. Just a small amount can extend the freshness of citrus accords and boost the overall brilliance and lift of the formula.

Because of its high intensity and powerful diffusion, Aldehyde C-11 Undecylenic is usually used at low dosage (trace to very low levels) in fine fragrances, body mists, soaps, detergents, fabric softeners, floor cleaners and other home care products where a long-lasting clean–fresh effect is desired. It is especially useful when a clear aldehydic signature is needed, evoking classic aldehydic florals while keeping the overall character airy and modern.

For the perfumer, this is a material that demands respect in terms of dosage: if overdosed, Aldehyde C-11 Undecylenic can easily become harsh, metallic and dominating. Used with a careful hand, it acts as a “light source” in the composition – bringing life, professional polish and a finished feel to citrus–floral, soapy, fresh linen and classic aldehydic themes.

Technical standards

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 1503.89
methanol 1274.26
isopropanol 1494.27
water 0.02
ethyl acetate 1722.06
n-propanol 1374.18
acetone 2226.9
n-butanol 1420.14
acetonitrile 796.14
DMF 1069.18
toluene 615.59
isobutanol 1017.85
1,4-dioxane 1739.72
methyl acetate 906.68
THF 3484.74
2-butanone 1771.0
n-pentanol 1036.2
sec-butanol 1238.13
n-hexane 905.05
ethylene glycol 98.98
NMP 911.53
cyclohexane 930.99
DMSO 2231.21
n-butyl acetate 1686.67
n-octanol 358.19
chloroform 2148.49
n-propyl acetate 1315.32
acetic acid 581.15
dichloromethane 2326.29
cyclohexanone 2300.93
propylene glycol 252.83
isopropyl acetate 1041.17
DMAc 658.89
2-ethoxyethanol 932.99
isopentanol 1247.57
n-heptane 428.04
ethyl formate 585.34
1,2-dichloroethane 1963.41
n-hexanol 1209.3
2-methoxyethanol 1430.24
isobutyl acetate 722.52
tetrachloromethane 442.17
n-pentyl acetate 733.32
transcutol 3636.31
n-heptanol 371.37
ethylbenzene 373.16
MIBK 983.93
2-propoxyethanol 1357.27
tert-butanol 1641.94
MTBE 1645.28
2-butoxyethanol 641.42
propionic acid 650.14
o-xylene 331.47
formic acid 91.39
diethyl ether 2440.57
m-xylene 416.65
p-xylene 408.97
chlorobenzene 705.78
dimethyl carbonate 175.48
n-octane 104.71
formamide 158.88
cyclopentanone 2105.13
2-pentanone 1912.31
anisole 567.21
cyclopentyl methyl ether 1957.53
gamma-butyrolactone 1701.31
1-methoxy-2-propanol 1368.28
pyridine 1424.18
3-pentanone 1079.65
furfural 1093.97
n-dodecane 44.82
diethylene glycol 552.05
diisopropyl ether 663.17
tert-amyl alcohol 1187.97
acetylacetone 1192.6
n-hexadecane 53.42
acetophenone 495.46
methyl propionate 917.96
isopentyl acetate 1274.47
trichloroethylene 2469.31
n-nonanol 315.92
cyclohexanol 1313.02
benzyl alcohol 448.35
2-ethylhexanol 821.31
isooctanol 351.42
dipropyl ether 1671.39
1,2-dichlorobenzene 617.05
ethyl lactate 312.13
propylene carbonate 888.58
n-methylformamide 493.38
2-pentanol 1157.01
n-pentane 495.85
1-propoxy-2-propanol 1279.27
1-methoxy-2-propyl acetate 1027.35
2-(2-methoxypropoxy) propanol 513.55
mesitylene 293.58
ε-caprolactone 1524.57
p-cymene 253.08
epichlorohydrin 2099.56
1,1,1-trichloroethane 1598.43
2-aminoethanol 339.08
morpholine-4-carbaldehyde 975.23
sulfolane 1811.55
2,2,4-trimethylpentane 138.46
2-methyltetrahydrofuran 2847.47
n-hexyl acetate 830.14
isooctane 133.7
2-(2-butoxyethoxy)ethanol 781.02
sec-butyl acetate 816.74
tert-butyl acetate 1042.78
decalin 247.01
glycerin 259.29
diglyme 1489.99
acrylic acid 359.13
isopropyl myristate 298.59
n-butyric acid 1461.08
acetyl acetate 586.94
di(2-ethylhexyl) phthalate 197.8
ethyl propionate 958.0
nitromethane 899.71
1,2-diethoxyethane 1800.7
benzonitrile 614.93
trioctyl phosphate 162.03
1-bromopropane 1856.76
gamma-valerolactone 2001.74
n-decanol 222.72
triethyl phosphate 308.5
4-methyl-2-pentanol 584.15
propionitrile 974.3
vinylene carbonate 621.15
1,1,2-trichlorotrifluoroethane 1018.55
DMS 405.29
cumene 235.26
2-octanol 283.46
2-hexanone 1419.74
octyl acetate 324.85
limonene 526.35
1,2-dimethoxyethane 1746.35
ethyl orthosilicate 336.67
tributyl phosphate 237.0
diacetone alcohol 910.86
N,N-dimethylaniline 345.82
acrylonitrile 774.51
aniline 627.89
1,3-propanediol 628.27
bromobenzene 806.7
dibromomethane 1961.66
1,1,2,2-tetrachloroethane 2155.09
2-methyl-cyclohexyl acetate 622.34
tetrabutyl urea 286.77
diisobutyl methanol 489.57
2-phenylethanol 505.17
styrene 492.91
dioctyl adipate 394.75
dimethyl sulfate 280.07
ethyl butyrate 1114.21
methyl lactate 282.82
butyl lactate 462.4
diethyl carbonate 521.51
propanediol butyl ether 472.28
triethyl orthoformate 653.98
p-tert-butyltoluene 243.91
methyl 4-tert-butylbenzoate 381.61
morpholine 2474.91
tert-butylamine 1228.33
n-dodecanol 165.83
dimethoxymethane 1037.67
ethylene carbonate 607.85
cyrene 367.88
2-ethoxyethyl acetate 787.67
2-ethylhexyl acetate 1009.56
1,2,4-trichlorobenzene 634.32
4-methylpyridine 1298.81
dibutyl ether 1128.6
2,6-dimethyl-4-heptanol 489.57
DEF 1358.04
dimethyl isosorbide 861.15
tetrachloroethylene 1474.52
eugenol 350.53
triacetin 556.86
span 80 493.94
1,4-butanediol 227.01
1,1-dichloroethane 1995.34
2-methyl-1-pentanol 858.73
methyl formate 291.68
2-methyl-1-butanol 1034.31
n-decane 102.42
butyronitrile 1300.21
3,7-dimethyl-1-octanol 448.56
1-chlorooctane 371.07
1-chlorotetradecane 114.16
n-nonane 122.08
undecane 64.01
tert-butylcyclohexane 217.29
cyclooctane 250.5
cyclopentanol 1171.2
tetrahydropyran 3466.47
tert-amyl methyl ether 1075.7
2,5,8-trioxanonane 856.62
1-hexene 1900.33
2-isopropoxyethanol 742.94
2,2,2-trifluoroethanol 118.99
methyl butyrate 1299.15

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  • CAS NO.

    112-45-8

  • OLFACTIVE FAMILY

    Aldehydic

  • BRAND

    Givaudan

Olfactory Pyramid

heart

Notes

Citrus
Waxy
Fatty
Aldehydic
Floral

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

Shipping & Returns

  • All orders will be processed within 1-2 business days from the time the order is confirmed.
  • Free shipping is available for orders valued at $200 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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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)

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