Phenyl Acetaldehyde Aroma Chemical
CAS# 122-78-1
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Phenyl Acetaldehyde (CAS 122-78-1) is a colorless to pale yellow liquid aroma chemical with a distinctly floral scent reminiscent of hyacinth and rose, enriched by honey-like, green, and slightly spicy nuances. It occurs naturally in various essential oils and botanical materials such as rose, orange blossom, and cocoa, giving it a very “natural” and lifelike character in fragrance compositions.
In perfumery, Phenyl Acetaldehyde is used from the top into the heart of the fragrance, helping to brighten and sharpen floral accords, especially rose, hyacinth, lilac, jasmine, and mimosa, while adding a characteristic soft honey effect. At low dosage it can create interesting accents in fruity and gourmand notes, as well as bring warm depth to chypre, oriental, tobacco, and amber themes.
Phenyl Acetaldehyde blends well with classic floral ingredients such as phenethyl alcohol, benzyl acetate, linalool, linalyl acetate, hydroxycitronellal, ionones, and certain aliphatic aldehydes, enhancing diffusion and naturalness for the overall fragrance. It is readily soluble in perfumer’s alcohol and standard fragrance solvents, making it suitable for fine fragrances, personal care products (shower gels, shampoos, lotions), as well as home care and air care products with floral, honey, or fruity signatures. As an aldehyde, it should be stored tightly closed, away from light and high temperatures to minimize oxidation and maintain olfactory stability during storage and use.
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Technical standards
Technical standards

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CAS NO.
122-78-1
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OLFACTIVE FAMILY
Green
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BRAND
Scent.vn
Olfactory Pyramid
Notes
| Green |
| Floral |
| Sweet |
| Hyacinth |
| Honey |
| 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 |
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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