evernia prunastri lichen
None found
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Name: evernia prunastri lichen
CAS Number: 9000-50-4 
Category: information only not used for fragrances or flavors
US / EU / FDA / JECFA / FEMA / FLAVIS / Scholar / Patent Information:
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Physical Properties:
Food Chemicals Codex Listed: No
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Organoleptic Properties:
Odor Type: green
Odor Strength: medium
 sweet  green  oakmoss  grassy  oily  
Odor Description:
at 100.00 %. 
sweet green quinoline grassy oily
Substantivity: 400 Hour(s)
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Cosmetic Information:
None found
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Bristol Botanicals
Oak moss Evernia prunastri
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Safety Information:
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
None found.
GHS Label elements, including precautionary statements
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
Inhalation Toxicity:
Not determined
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Safety in Use Information:
Category: information only not used for fragrances or flavors
IFRA Critical Effect: Sensitization
IFRA: View Standard
Fragrance usage is IFRA RESTRICTED. View Standard for complete information.
Please review all IFRA documents for complete information.
IFRA categories: limits in the finished product: (For a description of the categories, refer to the IFRA QRA Information Booklet.)
Category 1:
See Note (1)
0.02 % (1)
Category 2:  0.03 %
Category 3:  0.10 %
Category 4:  0.10 %
Category 5:  0.10 %
Category 6:  0.50 % (1)
Category 7:  0.10 %
Category 8:  0.10 %
Category 9:  0.10 %
Category 10:  0.10 %
Category 11: See Note (2)

For this material, for pragmatic reasons, restrictive levels allowed by the QRA for certain categories but actually being higher than those already in place before applying the QRA, will temporarily not be implemented until the end of a 5 year monitoring phase. At the end of the 5 years the position will be reevaluated again.


(1) IFRA would recommend that any material used to impart perfume or flavour in products intended for human ingestion should consist of ingredients that are in compliance with appropriate regulations for foods and food flavourings in the countries of planned distribution and, where these are lacking, with the recommendations laid down in the Code of Practice of IOFI (International Organisation of the Flavor Industry). Further information about IOFI can be found on its website (www.iofi.org).


(2) Category 11 includes all non-skin contact or incidental skin contact products. Due to the negligible skin contact from these types of products there is no justification for a restriction of the concentration of this fragrance ingredient in the finished product.

Recommendation for evernia prunastri lichen flavor usage levels up to:
 not for flavor use.
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Safety References:
EPA Substance Registry Services (TSCA): 9000-50-4
EPA ACToR: Toxicology Data
EPA Substance Registry Services (SRS): Registry
National Institute of Allergy and Infectious Diseases: Data
 evernia prunastri lichen
Chemidplus: 0009000504
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 evernia prunastri lichen
Canada Domestic Sub. List: 9000-50-4
Pubchem (sid): 135334490
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Other Information:
Export Tariff Code: 3301.30.0000
Wikipedia: View
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Potential Blenders and core components note
None Found
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Potential Uses:
None Found
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Occurrence (nature, food, other): note
 evernia prunastri lichen
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 oak moss
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PubMed: An immune response study of oakmoss absolute and its constituents atranol and chloroatranol.
PubMed: Patch testing with serial dilutions and thin-layer chromatograms of oak moss absolutes containing high and low levels of atranol and chloroatranol.
PubMed: Effects of oakmoss and its components on biofilm formation of Legionella pneumophila.
PubMed: The antibacterial activity of compounds isolated from oakmoss against Legionella pneumophila and other Legionella spp.
PubMed: Chemical reactivity and skin sensitization potential for benzaldehydes: can Schiff base formation explain everything?
PubMed: The antibacterial activity of fragrance ingredients against Legionella pneumophila.
PubMed: Evaluation of phototoxic properties of fragrances.
PubMed: [Contact allergy to fragrances].
PubMed: [Analysis of volatile constituents in oakmoss concrete by GC-MS with solid phase microextraction].
PubMed: Content of oak moss allergens atranol and chloroatranol in perfumes and similar products.
PubMed: (22S)-6-O-acetyl-21betaH-hopane-3beta,6beta,22,29-tetrol from oakmoss (Evernia prunastri).
PubMed: The significance of fragrance mix, balsam of Peru, colophony and propolis as screening tools in the detection of fragrance allergy.
PubMed: Limited concordance between "oakmoss" and colophony in clinical patch testing.
PubMed: Identification of atranorin and related potential allergens in oakmoss absolute by high-performance liquid chromatography-tandem mass spectrometry using negative ion atmospheric pressure chemical ionization.
PubMed: Contact allergy to oak moss resin in a soluble oil.
PubMed: Presence of resin acids in "Oakmoss" patch test material: a source of misdiagnosis?
PubMed: Effects of a long-term inhalation of fragrances on the stress-induced immunosuppression in mice.
PubMed: Preparation of an oakmoss absolute with reduced allergenic potential.
PubMed: Nematocidal principles in "oakmoss absolute" and nematocidal activity of 2,4-dihydroxybenzoates.
PubMed: Sensitization to fragrance materials in Indonesian cosmetics.
PubMed: Oakmoss photosensitivity in a ragweed-allergic patient.
PubMed: Perfume dermatitis.
PubMed: Antioxidant properties of wax from Yugoslavian oakmoss (Evernia prunastri).
PubMed: Perfume dermatitis from the cosmetic ingredients oakmoss and hydroxycitronellal.
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