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Rosacetol aka. Rose Acetate Rose Crystals Aroma Chemical
CAS# 90-17-5

Floral, Rose, Balsamic, Sweet, Powdery

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Rosacetol, commonly known as Rose Acetate or Trichloromethyl phenyl carbinyl acetate, is a synthetic material that played an important role in the history of the functional fragrance industry. Produced through the reaction of chloral and benzene followed by acetylation, this substance exists as white solid crystals at room temperature. The introduction of Rosacetol in the mid-20th century successfully solved the challenge of finding a rose note capable of withstanding the harsh alkaline environment of soap without undergoing chemical degradation.

Description

Belonging to the Floral and Earthy family, this material has a deep, warm rose scent with a slightly powdery character, clearly interwoven with facets of damp earth and a subtle green metallic nuance. Functioning mainly from the heart note to the base note, Rosacetol serves effectively as both a modifier and a fixative, helping more volatile components remain longer on the surface of the product. Steffen Arctander, in Perfume and Flavor Chemicals, noted this characteristic when describing it as having a “rose odor with a mild earthy undertone” and being “very useful in soaps because of its excellent stability and good fixative value.” In compounding practice, it is often paired with Geraniol, Citronellol, Phenylethyl Alcohol, or Patchouli to create rose accords with greater depth. Although its odor intensity is not especially sharp, its solid physical form requires the user to dissolve it in safe solvents such as DPG, IPM, or DEP at a concentration of 10% to 20% for easier handling.

Applications

Today, Rosacetol is widely used in bar soaps, laundry detergents, scented candles, and home fragrance products at recommended levels of 1% to 5%, while it is only rarely found in modern fine fragrance formulas. In terms of safety, this material is generally compliant with IFRA standards, is not known for phototoxicity or severe allergenicity, but should be stored in a cool, dry, and well-ventilated place to maintain the quality of its crystalline form.

Technical standards

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 60.62
methanol 53.13
isopropanol 47.18
water 0.12
ethyl acetate 507.85
n-propanol 59.85
acetone 581.87
n-butanol 74.29
acetonitrile 316.92
DMF 1022.23
toluene 648.72
isobutanol 62.15
1,4-dioxane 634.51
methyl acetate 538.84
THF 1064.89
2-butanone 552.96
n-pentanol 87.5
sec-butanol 87.59
n-hexane 26.7
ethylene glycol 21.52
NMP 790.64
cyclohexane 62.64
DMSO 516.59
n-butyl acetate 318.46
n-octanol 129.25
chloroform 1010.33
n-propyl acetate 341.02
acetic acid 177.95
dichloromethane 1036.27
cyclohexanone 724.17
propylene glycol 28.33
isopropyl acetate 268.84
DMAc 973.88
2-ethoxyethanol 175.24
isopentanol 91.92
n-heptane 36.55
ethyl formate 468.02
1,2-dichloroethane 650.57
n-hexanol 136.27
2-methoxyethanol 247.82
isobutyl acetate 193.9
tetrachloromethane 107.69
n-pentyl acetate 236.0
transcutol 409.34
n-heptanol 91.27
ethylbenzene 304.13
MIBK 230.34
2-propoxyethanol 248.62
tert-butanol 107.92
MTBE 241.99
2-butoxyethanol 164.71
propionic acid 110.62
o-xylene 332.25
formic acid 46.87
diethyl ether 225.74
m-xylene 333.22
p-xylene 373.16
chlorobenzene 486.56
dimethyl carbonate 266.83
n-octane 28.12
formamide 114.84
cyclopentanone 842.69
2-pentanone 430.05
anisole 504.18
cyclopentyl methyl ether 424.92
gamma-butyrolactone 804.86
1-methoxy-2-propanol 182.41
pyridine 762.15
3-pentanone 383.17
furfural 872.38
n-dodecane 29.84
diethylene glycol 165.18
diisopropyl ether 94.85
tert-amyl alcohol 141.33
acetylacetone 634.48
n-hexadecane 34.05
acetophenone 502.05
methyl propionate 408.53
isopentyl acetate 247.5
trichloroethylene 1372.13
n-nonanol 115.79
cyclohexanol 181.76
benzyl alcohol 299.92
2-ethylhexanol 129.54
isooctanol 84.8
dipropyl ether 159.96
1,2-dichlorobenzene 412.79
ethyl lactate 127.08
propylene carbonate 501.36
n-methylformamide 262.88
2-pentanol 72.77
n-pentane 23.79
1-propoxy-2-propanol 178.07
1-methoxy-2-propyl acetate 277.08
2-(2-methoxypropoxy) propanol 214.58
mesitylene 169.92
ε-caprolactone 588.08
p-cymene 149.51
epichlorohydrin 932.78
1,1,1-trichloroethane 563.15
2-aminoethanol 36.66
morpholine-4-carbaldehyde 837.5
sulfolane 687.37
2,2,4-trimethylpentane 22.29
2-methyltetrahydrofuran 621.36
n-hexyl acetate 284.58
isooctane 14.86
2-(2-butoxyethoxy)ethanol 235.12
sec-butyl acetate 217.16
tert-butyl acetate 253.84
decalin 51.67
glycerin 54.8
diglyme 514.61
acrylic acid 122.14
isopropyl myristate 128.64
n-butyric acid 183.47
acetyl acetate 362.69
di(2-ethylhexyl) phthalate 125.84
ethyl propionate 329.84
nitromethane 581.07
1,2-diethoxyethane 283.72
benzonitrile 454.84
trioctyl phosphate 92.19
1-bromopropane 323.96
gamma-valerolactone 964.15
n-decanol 96.44
triethyl phosphate 136.41
4-methyl-2-pentanol 67.69
propionitrile 211.7
vinylene carbonate 507.29
1,1,2-trichlorotrifluoroethane 433.7
DMS 287.22
cumene 168.38
2-octanol 93.8
2-hexanone 331.51
octyl acetate 163.41
limonene 186.38
1,2-dimethoxyethane 655.47
ethyl orthosilicate 124.96
tributyl phosphate 106.86
diacetone alcohol 233.55
N,N-dimethylaniline 358.43
acrylonitrile 328.89
aniline 352.28
1,3-propanediol 63.52
bromobenzene 594.34
dibromomethane 673.56
1,1,2,2-tetrachloroethane 837.29
2-methyl-cyclohexyl acetate 201.25
tetrabutyl urea 172.87
diisobutyl methanol 80.23
2-phenylethanol 280.36
styrene 382.9
dioctyl adipate 174.48
dimethyl sulfate 373.93
ethyl butyrate 270.24
methyl lactate 142.77
butyl lactate 143.09
diethyl carbonate 201.12
propanediol butyl ether 145.37
triethyl orthoformate 168.21
p-tert-butyltoluene 140.91
methyl 4-tert-butylbenzoate 262.38
morpholine 520.68
tert-butylamine 77.4
n-dodecanol 81.26
dimethoxymethane 538.99
ethylene carbonate 391.33
cyrene 278.93
2-ethoxyethyl acetate 301.78
2-ethylhexyl acetate 227.41
1,2,4-trichlorobenzene 468.8
4-methylpyridine 916.96
dibutyl ether 175.07
2,6-dimethyl-4-heptanol 80.23
DEF 548.99
dimethyl isosorbide 394.31
tetrachloroethylene 507.42
eugenol 273.1
triacetin 260.94
span 80 175.34
1,4-butanediol 40.7
1,1-dichloroethane 523.21
2-methyl-1-pentanol 115.17
methyl formate 379.88
2-methyl-1-butanol 97.55
n-decane 42.55
butyronitrile 249.62
3,7-dimethyl-1-octanol 123.82
1-chlorooctane 136.81
1-chlorotetradecane 71.19
n-nonane 39.97
undecane 35.0
tert-butylcyclohexane 42.6
cyclooctane 26.57
cyclopentanol 172.54
tetrahydropyran 508.14
tert-amyl methyl ether 248.23
2,5,8-trioxanonane 379.45
1-hexene 113.2
2-isopropoxyethanol 155.21
2,2,2-trifluoroethanol 82.07
methyl butyrate 448.31

Scent© AI

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  • CAS NUMBER

    90-17-5

  • FAMILIES

    Floral

  • BRAND

    Scent.vn

  • EVAPORATION RATE

    Slow

  • Odor impact

    Medium est.

  • FLASH POINT

    121.74 ˚C est.

Olfactory Pyramid

heart base

Notes

Floral
Rose
Balsamic
Sweet
Powdery

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 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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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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