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Floralozone Aroma Chemical
CAS# 67634-14-4

Floral, Green, Fresh, Aldehydic, Muguet

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Carrying the breath of the sky and a sense of purity, Floralozone (a well-known IFF product)-also known by names such as Ozone Propanal, Floral Aldehyde, and the chemical name 3-(4-ethylphenyl)-2,2-dimethylpropanal-is a fully man-made synthetic ingredient that does not exist in nature. Appearing as a clear, colorless or pale yellow liquid, this cyclic aldehyde compound has a distinctive, powerful ozone-like scent, evoking the feeling of clean air blended with refined white florals and a fresh green nuance.

Although it was developed exclusively and patented by IFF in the early 1970s, Floralozone did not truly come into the spotlight and gain widespread popularity until the late 1980s and throughout the 1990s, when global perfumery trends shifted toward clean, strong, linear scent profiles. With its ability to create a free-spirited sea-breeze effect, recreate the crisp smell of freshly washed laundry, and significantly boost the impact of floral notes, it is considered an essential piece for building airy, modern olfactive “spaces.”

Description

Belonging to a multi-faceted family spanning Floral, Aldehydic, Marine, and Green facets, Floralozone plays an important role in the top and heart of a composition as an extremely powerful booster and a highly characterful “note-changer.” Its scent paints a vivid picture of fresh air after a rain shower or the immaculate cleanness of freshly laundered fabrics, intertwined with the elegance of jasmine and lily-of-the-valley-yet sharper and more overtly synthetic-tinged with a hint of dill-like or softly green accents. With an intensity strong enough to dominate an entire structure even at low dosage, Floralozone offers moderately good longevity and projects most brilliantly from the early to mid stages of diffusion. This makes it a key tool for perfumers to construct fresh-air or “clean laundry” accords, while helping floral bouquets feel lighter, more modern, and completely shed any heavy, classical weight.

One of the most iconic formula “signatures” that shaped the clean scent style of the 1990s is the combination of Floralozone with the clean musk Galaxolide and Dihydromyrcenol, alongside its excellent synergy with marine notes like Calone or with white florals. Because of its overwhelming power, in practical use this material is often pre-diluted into 10% or 50% solutions in DPG or ethanol to make accurate dosing easier and to avoid damaging the overall structure of the fragrance.

Applications

Floralozone is not only a standout in sporty, energetic, or minimalist men’s and women’s fragrances; it also holds a strong position in the laundry and fabric-care industry thanks to its excellent substantivity on wet fabric, delivering a crisp “just-cleaned” impression to clothes, as well as freshness in soaps and shower gels. A classic proof of its power is Calvin Klein’s Eternity for Women (1988), where the renowned perfumer Sophia Grojsman boldly used a large amount of Floralozone to create a sharp, radiant, highly diffusive floral effect-helping define the American perfume style of that era, alongside another famous name, Escape.

In Steffen Arctander’s 1969 book Perfume and Flavor Chemicals, there is no information on this substance, because Floralozone was commercialized and became widely known after the book was published. However, using this active material requires great caution, as it is strictly limited by IFRA standards due to its potential to cause irritation and skin sensitization if overdosed. According to the referenced IFRA 51 amendment, the maximum use level for spray perfumes is only about 1.3% to 1.5%, and even lower for rinse-off products-far more modest than materials such as Hedione or Iso E Super-so consulting the most up-to-date regulatory tables is mandatory. In terms of storage, like other aldehydes, Floralozone oxidizes easily, so it should be kept in tightly sealed bottles, protected from light and high temperatures, and an antioxidant should be added if long-term storage is intended.

56 total reviews

Technical standards

Physical appearance Transparent liquid Conform
Color Colorless Conform
Specific Gravity @20˚C 0.951 → 0.958 0.9561
Refractive Index @20˚C 1.504 → 1.508 1.5062
Acid value (mgKOH/g) ≤ 1.0 0.12
Purity ≥ 97.0% 98.3%

Solubility @25˚C

Solvent Solubility (g/L)
ethanol 914.03
methanol 563.1
isopropanol 794.68
water 0.28
ethyl acetate 1874.49
n-propanol 925.15
acetone 2052.92
n-butanol 884.67
acetonitrile 1654.5
DMF 2049.43
toluene 1025.29
isobutanol 755.59
1,4-dioxane 1485.39
methyl acetate 1683.55
THF 2196.8
2-butanone 2119.04
n-pentanol 581.63
sec-butanol 789.81
n-hexane 194.92
ethylene glycol 89.63
NMP 1376.91
cyclohexane 229.12
DMSO 1026.23
n-butyl acetate 1906.68
n-octanol 388.26
chloroform 4110.47
n-propyl acetate 1230.76
acetic acid 517.93
dichloromethane 4531.71
cyclohexanone 2393.7
propylene glycol 204.22
isopropyl acetate 969.53
DMAc 1264.73
2-ethoxyethanol 634.82
isopentanol 817.2
n-heptane 150.77
ethyl formate 1331.67
1,2-dichloroethane 2661.53
n-hexanol 999.64
2-methoxyethanol 910.1
isobutyl acetate 724.28
tetrachloromethane 589.95
n-pentyl acetate 690.08
transcutol 1859.03
n-heptanol 379.22
ethylbenzene 667.86
MIBK 863.97
2-propoxyethanol 1054.08
tert-butanol 881.17
MTBE 1106.55
2-butoxyethanol 566.81
propionic acid 749.53
o-xylene 593.35
formic acid 118.69
diethyl ether 1247.28
m-xylene 693.72
p-xylene 749.47
chlorobenzene 1334.72
dimethyl carbonate 481.61
n-octane 62.22
formamide 294.69
cyclopentanone 2527.07
2-pentanone 1712.86
anisole 1067.67
cyclopentyl methyl ether 1191.0
gamma-butyrolactone 2422.39
1-methoxy-2-propanol 818.03
pyridine 1729.77
3-pentanone 1265.07
furfural 1774.2
n-dodecane 41.09
diethylene glycol 445.03
diisopropyl ether 385.05
tert-amyl alcohol 773.44
acetylacetone 1277.81
n-hexadecane 49.58
acetophenone 931.47
methyl propionate 1355.22
isopentyl acetate 1394.35
trichloroethylene 4713.95
n-nonanol 318.0
cyclohexanol 730.22
benzyl alcohol 640.73
2-ethylhexanol 653.37
isooctanol 320.79
dipropyl ether 902.86
1,2-dichlorobenzene 1111.4
ethyl lactate 404.18
propylene carbonate 1519.46
n-methylformamide 1044.11
2-pentanol 638.07
n-pentane 149.55
1-propoxy-2-propanol 939.35
1-methoxy-2-propyl acetate 1035.78
2-(2-methoxypropoxy) propanol 489.54
mesitylene 409.29
ε-caprolactone 1767.34
p-cymene 397.54
epichlorohydrin 2745.97
1,1,1-trichloroethane 2496.71
2-aminoethanol 263.05
morpholine-4-carbaldehyde 1334.18
sulfolane 1878.86
2,2,4-trimethylpentane 83.29
2-methyltetrahydrofuran 1751.32
n-hexyl acetate 964.21
isooctane 77.68
2-(2-butoxyethoxy)ethanol 648.31
sec-butyl acetate 763.43
tert-butyl acetate 877.57
decalin 154.23
glycerin 198.0
diglyme 1222.25
acrylic acid 522.86
isopropyl myristate 355.96
n-butyric acid 1179.7
acetyl acetate 763.94
di(2-ethylhexyl) phthalate 282.69
ethyl propionate 1045.34
nitromethane 1445.77
1,2-diethoxyethane 1066.29
benzonitrile 1143.5
trioctyl phosphate 226.86
1-bromopropane 1740.86
gamma-valerolactone 2332.56
n-decanol 241.72
triethyl phosphate 343.59
4-methyl-2-pentanol 378.42
propionitrile 1527.63
vinylene carbonate 1258.95
1,1,2-trichlorotrifluoroethane 1107.77
DMS 650.6
cumene 433.64
2-octanol 276.38
2-hexanone 1196.5
octyl acetate 438.49
limonene 524.96
1,2-dimethoxyethane 1322.45
ethyl orthosilicate 328.67
tributyl phosphate 305.08
diacetone alcohol 801.61
N,N-dimethylaniline 653.48
acrylonitrile 1541.26
aniline 814.85
1,3-propanediol 422.16
bromobenzene 1538.21
dibromomethane 2916.38
1,1,2,2-tetrachloroethane 3169.71
2-methyl-cyclohexyl acetate 684.44
tetrabutyl urea 367.19
diisobutyl methanol 342.13
2-phenylethanol 669.83
styrene 804.12
dioctyl adipate 488.08
dimethyl sulfate 607.0
ethyl butyrate 1148.56
methyl lactate 407.19
butyl lactate 473.82
diethyl carbonate 663.34
propanediol butyl ether 503.58
triethyl orthoformate 572.96
p-tert-butyltoluene 368.15
methyl 4-tert-butylbenzoate 600.38
morpholine 1677.5
tert-butylamine 638.34
n-dodecanol 186.98
dimethoxymethane 1133.85
ethylene carbonate 1073.19
cyrene 502.83
2-ethoxyethyl acetate 807.23
2-ethylhexyl acetate 1088.56
1,2,4-trichlorobenzene 1152.87
4-methylpyridine 2046.91
dibutyl ether 626.71
2,6-dimethyl-4-heptanol 342.13
DEF 1515.4
dimethyl isosorbide 959.35
tetrachloroethylene 1747.2
eugenol 506.66
triacetin 655.0
span 80 438.08
1,4-butanediol 198.98
1,1-dichloroethane 3002.75
2-methyl-1-pentanol 587.2
methyl formate 907.4
2-methyl-1-butanol 734.89
n-decane 77.7
butyronitrile 1709.74
3,7-dimethyl-1-octanol 402.65
1-chlorooctane 376.07
1-chlorotetradecane 135.53
n-nonane 82.03
undecane 54.72
tert-butylcyclohexane 149.31
cyclooctane 90.69
cyclopentanol 712.55
tetrahydropyran 1875.57
tert-amyl methyl ether 772.77
2,5,8-trioxanonane 743.39
1-hexene 740.48
2-isopropoxyethanol 511.73
2,2,2-trifluoroethanol 194.18
methyl butyrate 1470.77

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  • CAS NUMBER

    67634-14-4

  • FAMILIES

    Watery

  • BRAND

    IFF

  • EVAPORATION RATE

    Slow

  • Odor impact

    High est.

  • FLASH POINT

    386.2 ˚C est.

heart base
Floral
Green
Fresh
Aldehydic
Muguet
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
  • 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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  • 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.
    Download  
  • Safety Data Sheet (SDS)

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