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Alpha Terpineol Aroma Chemical
CAS# 98-55-5

Floral, Herbal, Woody, Sweet, Citrus

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Alpha Terpineol (CAS# 98-55-5) is a monoterpenic alcohol derived from natural essential oils, widely appreciated in the fragrance industry for its soft, clean and easy-to-use scent profile. In its pure form, it appears as a colorless to very pale yellow liquid, stable and readily soluble in ethanol and oily solvents, making it suitable for incorporation into many different formulation systems.

Olfactively, Alpha Terpineol has a characteristic lilac-type floral note, gently powdery, slightly sweet, with subtle herbal, citrusy and soft pine nuances. Thanks to its balance between classic floral character and fresh cleanliness, this material is often used to smooth and “round off” floral, citrus and pine accords, while enhancing the impression of purity and comfort in the finished product.

In perfumery and fragranced products, Alpha Terpineol is an important building block for lilac, muguet and white floral structures, as well as for clean, soapy fragrance types. It is suitable for fine fragrances, body mists, air fresheners, fabric care, detergents, floor cleaners and other household products, as it performs well in soapy and aqueous bases, providing good diffusion and substantivity. At appropriate levels, it helps increase the “airy” quality, reinforces cleanliness, and supports masking of less pleasant base odors in cleaning and laundry formulations.

Alpha Terpineol is also favored in personal care and wash-off cosmetics thanks to its familiar, easy-to-wear scent and safe use at recommended dosages. It is a versatile choice for manufacturers seeking a clean floral raw material that is easy to blend: it can act as a key note in floral compositions or play a supporting role to soften harsh edges in a formula, helping to optimize cost while maintaining an appealing olfactory quality.

Technical standards

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 1108.63
methanol 955.58
isopropanol 904.64
water 3.56
ethyl acetate 584.91
n-propanol 745.64
acetone 570.01
n-butanol 848.98
acetonitrile 619.15
DMF 416.02
toluene 280.29
isobutanol 458.93
1,4-dioxane 1530.91
methyl acetate 455.26
THF 1693.77
2-butanone 504.17
n-pentanol 422.75
sec-butanol 572.61
n-hexane 139.07
ethylene glycol 114.34
NMP 332.97
cyclohexane 259.19
DMSO 332.39
n-butyl acetate 503.38
n-octanol 383.74
chloroform 1117.34
n-propyl acetate 267.56
acetic acid 424.47
dichloromethane 738.83
cyclohexanone 576.19
propylene glycol 232.12
isopropyl acetate 377.19
DMAc 369.91
2-ethoxyethanol 437.52
isopentanol 580.97
n-heptane 185.86
ethyl formate 319.25
1,2-dichloroethane 350.47
n-hexanol 844.9
2-methoxyethanol 861.72
isobutyl acetate 186.34
tetrachloromethane 220.16
n-pentyl acetate 266.26
transcutol 1645.74
n-heptanol 364.43
ethylbenzene 126.55
MIBK 269.88
2-propoxyethanol 881.44
tert-butanol 911.02
MTBE 657.27
2-butoxyethanol 455.84
propionic acid 332.48
o-xylene 161.81
formic acid 144.96
diethyl ether 803.52
m-xylene 185.59
p-xylene 172.18
chlorobenzene 269.92
dimethyl carbonate 124.25
n-octane 57.77
formamide 218.61
cyclopentanone 545.18
2-pentanone 463.71
anisole 279.84
cyclopentyl methyl ether 590.55
gamma-butyrolactone 511.15
1-methoxy-2-propanol 671.59
pyridine 565.16
3-pentanone 301.97
furfural 435.01
n-dodecane 44.98
diethylene glycol 459.0
diisopropyl ether 248.58
tert-amyl alcohol 534.23
acetylacetone 362.95
n-hexadecane 49.1
acetophenone 190.49
methyl propionate 336.7
isopentyl acetate 391.06
trichloroethylene 581.11
n-nonanol 327.15
cyclohexanol 517.05
benzyl alcohol 204.42
2-ethylhexanol 410.73
isooctanol 245.5
dipropyl ether 519.93
1,2-dichlorobenzene 216.61
ethyl lactate 131.08
propylene carbonate 334.54
n-methylformamide 280.3
2-pentanol 506.16
n-pentane 182.08
1-propoxy-2-propanol 619.25
1-methoxy-2-propyl acetate 455.93
2-(2-methoxypropoxy) propanol 391.37
mesitylene 121.37
ε-caprolactone 490.14
p-cymene 136.4
epichlorohydrin 604.98
1,1,1-trichloroethane 437.1
2-aminoethanol 329.81
morpholine-4-carbaldehyde 651.74
sulfolane 354.91
2,2,4-trimethylpentane 63.47
2-methyltetrahydrofuran 1040.31
n-hexyl acetate 433.15
isooctane 58.93
2-(2-butoxyethoxy)ethanol 611.43
sec-butyl acetate 200.4
tert-butyl acetate 361.15
decalin 76.53
glycerin 239.39
diglyme 926.52
acrylic acid 217.83
isopropyl myristate 173.99
n-butyric acid 595.32
acetyl acetate 306.63
di(2-ethylhexyl) phthalate 161.16
ethyl propionate 238.56
nitromethane 463.85
1,2-diethoxyethane 644.83
benzonitrile 295.82
trioctyl phosphate 123.08
1-bromopropane 398.1
gamma-valerolactone 762.94
n-decanol 232.19
triethyl phosphate 128.62
4-methyl-2-pentanol 288.55
propionitrile 510.84
vinylene carbonate 309.55
1,1,2-trichlorotrifluoroethane 342.24
DMS 211.79
cumene 96.61
2-octanol 233.8
2-hexanone 275.61
octyl acetate 232.12
limonene 220.34
1,2-dimethoxyethane 754.4
ethyl orthosilicate 140.86
tributyl phosphate 141.49
diacetone alcohol 361.73
N,N-dimethylaniline 173.67
acrylonitrile 376.4
aniline 361.6
1,3-propanediol 533.91
bromobenzene 264.9
dibromomethane 540.52
1,1,2,2-tetrachloroethane 488.12
2-methyl-cyclohexyl acetate 240.53
tetrabutyl urea 163.0
diisobutyl methanol 215.26
2-phenylethanol 314.35
styrene 155.63
dioctyl adipate 215.69
dimethyl sulfate 120.45
ethyl butyrate 319.28
methyl lactate 172.3
butyl lactate 211.94
diethyl carbonate 202.1
propanediol butyl ether 408.95
triethyl orthoformate 252.07
p-tert-butyltoluene 145.92
methyl 4-tert-butylbenzoate 231.0
morpholine 1557.99
tert-butylamine 673.79
n-dodecanol 171.77
dimethoxymethane 496.97
ethylene carbonate 292.48
cyrene 216.6
2-ethoxyethyl acetate 353.96
2-ethylhexyl acetate 324.81
1,2,4-trichlorobenzene 242.38
4-methylpyridine 527.97
dibutyl ether 377.22
2,6-dimethyl-4-heptanol 215.26
DEF 375.02
dimethyl isosorbide 517.77
tetrachloroethylene 322.3
eugenol 226.77
triacetin 314.2
span 80 406.55
1,4-butanediol 147.59
1,1-dichloroethane 500.53
2-methyl-1-pentanol 315.36
methyl formate 185.54
2-methyl-1-butanol 445.09
n-decane 77.2
butyronitrile 632.21
3,7-dimethyl-1-octanol 313.1
1-chlorooctane 192.17
1-chlorotetradecane 82.97
n-nonane 77.81
undecane 57.09
tert-butylcyclohexane 75.5
cyclooctane 92.44
cyclopentanol 457.32
tetrahydropyran 1350.52
tert-amyl methyl ether 391.21
2,5,8-trioxanonane 620.54
1-hexene 288.11
2-isopropoxyethanol 307.93
2,2,2-trifluoroethanol 114.98
methyl butyrate 272.44

Scent© AI

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  • CAS NO.

    98-55-5

  • OLFACTIVE FAMILY

    Conifer

  • BRAND

    Scent.vn

Olfactory Pyramid

heart

Notes

Floral
Herbal
Woody
Sweet
Citrus

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.
    Download  

  • 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.
    Download  
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