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Coumarin Aroma Chemical
CAS# 91-64-5

Sweet, Coumarinic, Coconut, Powdery, Balsamic

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Coumarin is a key aroma material in perfumery and flavor fragrance work, recognized for its warm, sweet scent that evokes sun-dried hay with a soft vanillic hue and a subtle almond facet. It lends soothing cleanliness, adds body, and brings a gentle warmth to the overall composition.

Within a formula, coumarin functions as a “linker” that ties disparate accords together, performing especially well with lavender, tonka bean, vanillin, patchouli, citrus families, fougère, and oriental structures. Thanks to strong diffusion and lasting power, it is often used to build fougère/amber bases, round off green notes, smooth sharp edges in florals, and contribute a creamy feel to gourmand directions.

The material dissolves readily in ethanol and most fragrance solvents, making it easy to deploy in fine fragrance, body mists, room sprays, candles, scented wax, reed diffusers, and fabric/household care. In home-fragrance applications, coumarin thickens the body and stabilizes the drydown; in personal-care and wash-off formats, it enhances a clean, powdery impression while improving substantivity on skin, hair, and fabrics.

Olfactorily, coumarin is potent and typically effective at low dosages. Adding it during final tuning helps adjust sweetness, warmth, and tenacity without masking the character of key ingredients. Stepwise trials at increasing levels-and evaluation in both wet and dry phases-are recommended to find the optimal balance.

Coumarin shows broad compatibility across solvents and product bases; however, as with any fragrance ingredient, usage should follow applicable safety guidance and regulations for the target category. Store in a cool, dry place away from direct light, and keep containers tightly closed to preserve freshness, minimize discoloration, and ensure long-term stability.

Technical standards

Physical appearance Crystal Conform
Color White Conform
Melting point 69.3°C Conform
Purity ≥ 98.0% 99.0%

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 145.51
methanol 289.21
isopropanol 71.72
water 0.94
ethyl acetate 405.48
n-propanol 89.11
acetone 847.6
n-butanol 71.95
acetonitrile 528.64
DMF 1335.53
toluene 111.76
isobutanol 61.05
1,4-dioxane 879.06
methyl acetate 580.86
THF 870.45
2-butanone 559.68
n-pentanol 59.27
sec-butanol 71.91
n-hexane 4.71
ethylene glycol 43.28
NMP 666.14
cyclohexane 6.31
DMSO 1228.54
n-butyl acetate 190.26
n-octanol 53.42
chloroform 291.89
n-propyl acetate 224.67
acetic acid 213.2
dichloromethane 708.18
cyclohexanone 412.47
propylene glycol 23.56
isopropyl acetate 151.22
DMAc 674.31
2-ethoxyethanol 206.69
isopentanol 77.16
n-heptane 9.11
ethyl formate 224.64
1,2-dichloroethane 655.66
n-hexanol 68.2
2-methoxyethanol 415.32
isobutyl acetate 108.79
tetrachloromethane 22.1
n-pentyl acetate 128.12
transcutol 1172.05
n-heptanol 44.05
ethylbenzene 58.52
MIBK 137.81
2-propoxyethanol 200.65
tert-butanol 101.62
MTBE 149.37
2-butoxyethanol 126.25
propionic acid 157.41
o-xylene 70.64
formic acid 81.94
diethyl ether 244.49
m-xylene 71.72
p-xylene 78.97
chlorobenzene 133.67
dimethyl carbonate 196.88
n-octane 5.45
formamide 374.23
cyclopentanone 730.61
2-pentanone 319.7
anisole 193.14
cyclopentyl methyl ether 234.79
gamma-butyrolactone 845.47
1-methoxy-2-propanol 201.15
pyridine 566.08
3-pentanone 258.2
furfural 551.95
n-dodecane 6.62
diethylene glycol 164.54
diisopropyl ether 49.37
tert-amyl alcohol 91.75
acetylacetone 423.81
n-hexadecane 7.72
acetophenone 187.11
methyl propionate 361.8
isopentyl acetate 143.06
trichloroethylene 856.17
n-nonanol 51.65
cyclohexanol 69.26
benzyl alcohol 108.78
2-ethylhexanol 49.67
isooctanol 40.82
dipropyl ether 87.42
1,2-dichlorobenzene 132.96
ethyl lactate 67.54
propylene carbonate 272.42
n-methylformamide 579.44
2-pentanol 48.86
n-pentane 4.08
1-propoxy-2-propanol 117.46
1-methoxy-2-propyl acetate 188.39
2-(2-methoxypropoxy) propanol 155.48
mesitylene 42.59
ε-caprolactone 362.48
p-cymene 39.17
epichlorohydrin 1110.7
1,1,1-trichloroethane 206.9
2-aminoethanol 60.43
morpholine-4-carbaldehyde 724.28
sulfolane 728.77
2,2,4-trimethylpentane 5.46
2-methyltetrahydrofuran 455.64
n-hexyl acetate 187.19
isooctane 4.62
2-(2-butoxyethoxy)ethanol 233.7
sec-butyl acetate 115.85
tert-butyl acetate 150.76
decalin 9.82
glycerin 54.65
diglyme 565.78
acrylic acid 152.62
isopropyl myristate 66.03
n-butyric acid 162.62
acetyl acetate 204.39
di(2-ethylhexyl) phthalate 53.89
ethyl propionate 178.46
nitromethane 995.32
1,2-diethoxyethane 297.02
benzonitrile 182.21
trioctyl phosphate 41.84
1-bromopropane 151.6
gamma-valerolactone 775.81
n-decanol 41.19
triethyl phosphate 61.46
4-methyl-2-pentanol 37.16
propionitrile 240.62
vinylene carbonate 259.37
1,1,2-trichlorotrifluoroethane 256.38
DMS 229.75
cumene 40.96
2-octanol 36.39
2-hexanone 196.27
octyl acetate 87.9
limonene 50.36
1,2-dimethoxyethane 510.56
ethyl orthosilicate 53.8
tributyl phosphate 55.24
diacetone alcohol 185.67
N,N-dimethylaniline 108.43
acrylonitrile 408.16
aniline 116.3
1,3-propanediol 108.35
bromobenzene 136.82
dibromomethane 277.51
1,1,2,2-tetrachloroethane 418.77
2-methyl-cyclohexyl acetate 87.6
tetrabutyl urea 78.45
diisobutyl methanol 35.93
2-phenylethanol 106.97
styrene 80.18
dioctyl adipate 96.86
dimethyl sulfate 282.16
ethyl butyrate 125.35
methyl lactate 95.62
butyl lactate 82.71
diethyl carbonate 90.88
propanediol butyl ether 112.91
triethyl orthoformate 72.99
p-tert-butyltoluene 36.01
methyl 4-tert-butylbenzoate 135.09
morpholine 720.19
tert-butylamine 48.02
n-dodecanol 32.3
dimethoxymethane 603.39
ethylene carbonate 207.52
cyrene 133.63
2-ethoxyethyl acetate 253.86
2-ethylhexyl acetate 116.59
1,2,4-trichlorobenzene 156.69
4-methylpyridine 411.15
dibutyl ether 99.23
2,6-dimethyl-4-heptanol 35.93
DEF 419.28
dimethyl isosorbide 270.82
tetrachloroethylene 243.25
eugenol 134.02
triacetin 196.58
span 80 99.13
1,4-butanediol 39.94
1,1-dichloroethane 300.46
2-methyl-1-pentanol 66.22
methyl formate 473.92
2-methyl-1-butanol 68.99
n-decane 9.25
butyronitrile 164.57
3,7-dimethyl-1-octanol 57.1
1-chlorooctane 43.14
1-chlorotetradecane 20.17
n-nonane 8.19
undecane 7.8
tert-butylcyclohexane 9.3
cyclooctane 3.23
cyclopentanol 99.38
tetrahydropyran 394.25
tert-amyl methyl ether 116.75
2,5,8-trioxanonane 330.9
1-hexene 29.57
2-isopropoxyethanol 130.81
2,2,2-trifluoroethanol 82.62
methyl butyrate 237.09

Scent© AI

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  • CAS NO.

    91-64-5

  • OLFACTIVE FAMILY

    Ambery

  • BRAND

    Scent.vn

Olfactory Pyramid

base

Notes

Sweet
Coumarinic
Coconut
Powdery
Balsamic

IFRA standard 51

Recommendation
Restriction
Maximum acceptable concentrations in the finished product (%)
Category 1
Products applied to the lips
 0.089 % Category 7A
Rinse-off products applied to the hair with some hand contact
 0.18 %
Category 2
Products applied to the axillae
 0.08 % Category 7B
Leave-on products applied to the hair with some hand contact
 0.18 %
Category 3
Products applied to the face/body using fingertips
 0.089 % Category 8
Products with significant anogenital exposure
 0.035 %
Category 4
Products related to fine fragrance
 1.5 % Category 9
Products with body and hand exposure, primarily rinse off
 0.52 %
Category 5A
Body lotion products applied to the body using the hands (palms), primarily leave on
 0.38 % Category 10A
Household care products with mostly hand contact
 0.52 %
Category 5B
Face moisturizer products applied to the face using the hands (palms), primarily leave on
 0.11 % Category 10B
Household care products with mostly hand contact, including aerosol/spray products (with potential leave-on skin contact)
 1.6 %
Category 5C
Hand cream products applied to the hands using the hands (palms), primarily leave on
 0.16 % Category 11A
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
 0.035 %
Category 5D
Baby Creams, baby Oils and baby talc
 0.035 % Category 11B
Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
 0.035 %
Category 6
Products with oral and lip exposure
 0.0024 % Category 12
Products not intended for direct skin contact, minimal or insignificant transfer to skin
 33 %

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  • 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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