Auralva aka. Aurantiol Aroma Chemical
CAS# 89-43-0
Floral, Sweet, Fresh, Lily, Muguet
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In the world of fragrance, there are sophisticated chemical techniques designed to make fragile beauties immortal. Auralva-more commonly known by the familiar name Aurantiol-is a compelling proof of that.
In essence, Auralva is a synthetic compound belonging to the Schiff base family, formed through a chemical reaction between Methyl Anthranilate and Hydroxycitronellal. This technique, developed and widely adopted from the mid-20th century onward, emerged as an intelligent solution to improve the longevity and stability of floral aldehydes, allowing a fragrance to last longer on skin and remain stable even in alkaline environments such as soap.
In appearance, it is a thick, viscous liquid, ranging from deep yellow to an alluring amber hue. But what truly defines it is its scent: a rich, concentrated orange-blossom aroma-lusciously sweet like grape honey-touched with nuances of tuberose and gardenia. Thanks to its persistence and opulent character, Auralva is regarded as a fixative and an essential backbone ingredient in white-floral compositions, especially orange blossom and gardenia accords.
Description
Auralva is a statement of endurance and depth: a solid, reliable base note within the Floral family. It is not merely a scent, but a powerful fixative-an anchor that keeps the entire fragrance “symphony” intact over time.
Its aroma celebrates the sweet beauty of orange blossom and citrus blossom, carrying the resonance of ripe grapes. It has a certain warmth and density that creates a luxurious, rounded impression. Although its intensity is only moderate, its tenacity is what truly stands out. Because of its heavy molecule and high viscosity, its diffusion is fairly low in its neat form, but it releases its scent steadily and gracefully when diluted. As a final highlight, its longevity is almost “eternal,” reportedly extending beyond 400 hours-meaning it can last for weeks on a blotter strip.
In formulas, Auralva is used to build a realistic, full-bodied orange blossom effect, while also acting as an “anchor” that holds volatile top and middle notes in place, making the floral structure more durable. It pairs beautifully with indole-type materials to create a rich jasmine effect, or with Methyl Anthranilate and citrus terpenes to amplify a radiant orange blossom note. Technically, due to its extremely thick and viscous consistency, Auralva is often pre-diluted in solvents such as DEP, IPM, or DPG to make weighing and blending easier.
Applications
Auralva is a statement of endurance and depth: a solid, reliable base note within the Floral family. It is not merely a scent, but a powerful fixative-an anchor that keeps the entire fragrance “symphony” intact over time.
Its aroma celebrates the sweet beauty of orange blossom and citrus blossom, carrying the resonance of ripe grapes. It has a certain warmth and density that creates a luxurious, rounded impression. Although its intensity is only moderate, its tenacity is what truly stands out. Because of its heavy molecule and high viscosity, its diffusion is fairly low in its neat form, but it releases its scent steadily and gracefully when diluted. As a final highlight, its longevity is almost “eternal,” reportedly extending beyond 400 hours-meaning it can last for weeks on a blotter strip.
In formulas, Auralva is used to build a realistic, full-bodied orange blossom effect, while also acting as an “anchor” that holds volatile top and middle notes in place, making the floral structure more durable. It pairs beautifully with indole-type materials to create a rich jasmine effect, or with Methyl Anthranilate and citrus terpenes to amplify a radiant orange blossom note. Technically, due to its extremely thick and viscous consistency, Auralva is often pre-diluted in solvents such as DEP, IPM, or DPG to make weighing and blending easier.
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Technical standards
Technical standards
| Physical appearance | Viscous liquid | Conform |
| Color | Pale yellow | Conform |
| Specific Gravity @20˚C | 1.02 → 1.08 | 1.0745 |
| Refractive Index @20˚C | 1.532 → 1.548 | 1.5355 |
| Flash point | ≥ 100.0°C | Conform |
| Acid value (mgKOH/g) | ≤ 1.0 | Conform |
Solubility @25˚C
Solubility @25˚C
| Solvent | Solubility (g/L) |
|---|---|
| ethanol | 915.87 |
| methanol | 907.55 |
| isopropanol | 488.97 |
| water | 0.1 |
| ethyl acetate | 466.78 |
| n-propanol | 511.05 |
| acetone | 583.61 |
| n-butanol | 435.34 |
| acetonitrile | 183.18 |
| DMF | 529.41 |
| toluene | 192.71 |
| isobutanol | 303.38 |
| 1,4-dioxane | 688.89 |
| methyl acetate | 330.37 |
| THF | 1344.46 |
| 2-butanone | 411.19 |
| n-pentanol | 290.19 |
| sec-butanol | 345.94 |
| n-hexane | 5.44 |
| ethylene glycol | 54.73 |
| NMP | 344.73 |
| cyclohexane | 16.32 |
| DMSO | 776.68 |
| n-butyl acetate | 216.87 |
| n-octanol | 89.35 |
| chloroform | 907.09 |
| n-propyl acetate | 208.38 |
| acetic acid | 388.86 |
| dichloromethane | 737.95 |
| cyclohexanone | 481.67 |
| propylene glycol | 232.84 |
| isopropyl acetate | 250.54 |
| DMAc | 569.81 |
| 2-ethoxyethanol | 453.72 |
| isopentanol | 331.77 |
| n-heptane | 3.59 |
| ethyl formate | 218.34 |
| 1,2-dichloroethane | 456.87 |
| n-hexanol | 231.67 |
| 2-methoxyethanol | 873.03 |
| isobutyl acetate | 158.03 |
| tetrachloromethane | 51.1 |
| n-pentyl acetate | 123.61 |
| transcutol | 1514.7 |
| n-heptanol | 90.57 |
| ethylbenzene | 73.98 |
| MIBK | 213.38 |
| 2-propoxyethanol | 462.74 |
| tert-butanol | 448.48 |
| MTBE | 287.52 |
| 2-butoxyethanol | 228.76 |
| propionic acid | 225.67 |
| o-xylene | 83.66 |
| formic acid | 117.94 |
| diethyl ether | 260.62 |
| m-xylene | 112.31 |
| p-xylene | 95.61 |
| chlorobenzene | 217.4 |
| dimethyl carbonate | 116.79 |
| n-octane | 2.42 |
| formamide | 170.37 |
| cyclopentanone | 564.96 |
| 2-pentanone | 349.45 |
| anisole | 197.16 |
| cyclopentyl methyl ether | 344.93 |
| gamma-butyrolactone | 514.0 |
| 1-methoxy-2-propanol | 681.5 |
| pyridine | 398.85 |
| 3-pentanone | 184.83 |
| furfural | 395.99 |
| n-dodecane | 3.14 |
| diethylene glycol | 324.41 |
| diisopropyl ether | 52.0 |
| tert-amyl alcohol | 319.39 |
| acetylacetone | 374.4 |
| n-hexadecane | 3.7 |
| acetophenone | 178.11 |
| methyl propionate | 287.62 |
| isopentyl acetate | 209.31 |
| trichloroethylene | 831.17 |
| n-nonanol | 82.08 |
| cyclohexanol | 310.27 |
| benzyl alcohol | 211.72 |
| 2-ethylhexanol | 103.54 |
| isooctanol | 71.69 |
| dipropyl ether | 89.56 |
| 1,2-dichlorobenzene | 161.64 |
| ethyl lactate | 133.25 |
| propylene carbonate | 294.9 |
| n-methylformamide | 229.78 |
| 2-pentanol | 229.28 |
| n-pentane | 5.33 |
| 1-propoxy-2-propanol | 298.78 |
| 1-methoxy-2-propyl acetate | 286.64 |
| 2-(2-methoxypropoxy) propanol | 239.74 |
| mesitylene | 57.97 |
| ε-caprolactone | 387.34 |
| p-cymene | 41.93 |
| epichlorohydrin | 860.95 |
| 1,1,1-trichloroethane | 312.1 |
| 2-aminoethanol | 230.07 |
| morpholine-4-carbaldehyde | 507.16 |
| sulfolane | 545.44 |
| 2,2,4-trimethylpentane | 7.23 |
| 2-methyltetrahydrofuran | 629.04 |
| n-hexyl acetate | 181.81 |
| isooctane | 5.57 |
| 2-(2-butoxyethoxy)ethanol | 384.01 |
| sec-butyl acetate | 152.38 |
| tert-butyl acetate | 245.9 |
| decalin | 10.47 |
| glycerin | 235.7 |
| diglyme | 622.79 |
| acrylic acid | 154.15 |
| isopropyl myristate | 67.2 |
| n-butyric acid | 409.76 |
| acetyl acetate | 220.57 |
| di(2-ethylhexyl) phthalate | 90.08 |
| ethyl propionate | 164.04 |
| nitromethane | 471.96 |
| 1,2-diethoxyethane | 300.72 |
| benzonitrile | 186.79 |
| trioctyl phosphate | 57.22 |
| 1-bromopropane | 208.35 |
| gamma-valerolactone | 735.24 |
| n-decanol | 59.06 |
| triethyl phosphate | 71.89 |
| 4-methyl-2-pentanol | 120.4 |
| propionitrile | 178.3 |
| vinylene carbonate | 242.15 |
| 1,1,2-trichlorotrifluoroethane | 499.64 |
| DMS | 155.59 |
| cumene | 47.88 |
| 2-octanol | 55.9 |
| 2-hexanone | 205.48 |
| octyl acetate | 92.81 |
| limonene | 60.47 |
| 1,2-dimethoxyethane | 539.88 |
| ethyl orthosilicate | 72.02 |
| tributyl phosphate | 70.62 |
| diacetone alcohol | 346.83 |
| N,N-dimethylaniline | 115.31 |
| acrylonitrile | 188.75 |
| aniline | 265.72 |
| 1,3-propanediol | 394.24 |
| bromobenzene | 208.05 |
| dibromomethane | 420.27 |
| 1,1,2,2-tetrachloroethane | 712.68 |
| 2-methyl-cyclohexyl acetate | 138.3 |
| tetrabutyl urea | 86.35 |
| diisobutyl methanol | 52.39 |
| 2-phenylethanol | 202.41 |
| styrene | 97.73 |
| dioctyl adipate | 114.76 |
| dimethyl sulfate | 156.7 |
| ethyl butyrate | 140.75 |
| methyl lactate | 189.58 |
| butyl lactate | 137.66 |
| diethyl carbonate | 97.09 |
| propanediol butyl ether | 271.87 |
| triethyl orthoformate | 109.72 |
| p-tert-butyltoluene | 43.15 |
| methyl 4-tert-butylbenzoate | 159.29 |
| morpholine | 972.49 |
| tert-butylamine | 169.73 |
| n-dodecanol | 42.89 |
| dimethoxymethane | 522.47 |
| ethylene carbonate | 217.5 |
| cyrene | 196.56 |
| 2-ethoxyethyl acetate | 220.36 |
| 2-ethylhexyl acetate | 150.63 |
| 1,2,4-trichlorobenzene | 205.26 |
| 4-methylpyridine | 417.53 |
| dibutyl ether | 85.89 |
| 2,6-dimethyl-4-heptanol | 52.39 |
| DEF | 280.6 |
| dimethyl isosorbide | 351.46 |
| tetrachloroethylene | 345.92 |
| eugenol | 169.08 |
| triacetin | 205.45 |
| span 80 | 211.08 |
| 1,4-butanediol | 136.82 |
| 1,1-dichloroethane | 428.79 |
| 2-methyl-1-pentanol | 233.05 |
| methyl formate | 184.11 |
| 2-methyl-1-butanol | 285.74 |
| n-decane | 5.13 |
| butyronitrile | 232.99 |
| 3,7-dimethyl-1-octanol | 92.72 |
| 1-chlorooctane | 42.17 |
| 1-chlorotetradecane | 15.65 |
| n-nonane | 4.21 |
| undecane | 3.92 |
| tert-butylcyclohexane | 9.83 |
| cyclooctane | 4.38 |
| cyclopentanol | 295.23 |
| tetrahydropyran | 650.16 |
| tert-amyl methyl ether | 183.15 |
| 2,5,8-trioxanonane | 395.28 |
| 1-hexene | 46.43 |
| 2-isopropoxyethanol | 290.05 |
| 2,2,2-trifluoroethanol | 77.43 |
| methyl butyrate | 221.84 |
Scent© AI

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CAS NUMBER
89-43-0
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FAMILIES
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BRAND
IFF
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EVAPORATION RATE
Ultra slow
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FLASH POINT
450.8 ˚C est.
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pKa
7.42 est.
Olfactory Pyramid
Notes
| Floral |
| Sweet |
| Fresh |
| Lily |
| Muguet |
| Maximum acceptable concentrations in the finished product (%) | |||
|---|---|---|---|
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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
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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.
Certificates of Quality
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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