Longicyclenyl alcohol

Overview IFRA Botanical Request a quote

  • Identifiers

    CAS number
    20051-72-3

  • Properties

  • Applications

    Longicyclenyl alcohol (CAS 20051-72-3) is a bicyclic sesquiterpenoid alcohol originating from natural terpene frameworks, used as a fragrance ingredient imparting woody–piney, balsamic, slightly citrus nuances in perfumes, cosmetics, and personal care; as a background note or co-flavor at trace levels where regulations permit; as an intermediate to prepare fragrant esters and higher-value terpenoid derivatives; as a stereodefined building block for advanced organic synthesis; and as a reference/analytical standard in essential-oil profiling, structure–odor relationship studies, and bioactivity screening, with appropriate selection of purity grade and strict adherence to safety and regulatory requirements for each application.

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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

Botanical

Name CAS Botanical Proportion
Hinoki leaf Chamaecyparis obtusa (Sieb. et Zucc.) Endl., fam. Cupressaceae 0.73%
Hinoki root Chamaecyparis obtusa (Sieb. et Zucc.) Endl., fam. Cupressaceae 4.84%
Hinoki wood Chamaecyparis obtusa (Sieb. et Zucc.) Endl., fam. Cupressaceae 0.94%