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General Material Information

Preferred name hydroxycitronellal
Trivial Name Hydroxycitronellal
Short Description 3,7-dimethyl-7-hydroxyoctanal
Formula C10 H20 O2
CAS Number 107-75-5
Deleted CAS Number 123238-75-5
FEMA Number 2583
ECHA Number 203-518-7
FDA UNII 8SQ0VA4YUR
Nikkaji Number J2.859B
Beilstein Number 1721290
MDL MFCD00014681
COE Number 100
xLogP3-AA 1.60 (est)
Bio Activity Summary External link
NMR Predictor External link
JECFA Food Flavoring 611 hydroxycitronellal
FDA Patent No longer provide for the use of these seven synthetic flavoring substances
FDA Mainterm 107-75-5 ; HYDROXYCITRONELLAL
Synonyms
  • citronellal hydrate
  • citronellal, 7-hydroxy-
  • citronellaldehyde
  • cyclosia base (Firmenich)
  • oxy dihydrocitronellal
  • 3,7-dimethyl-7-hydroxyoctanal
  • hidroxycitronellal
  • hidroxycitronellal A
  • hydroxy citronellal
  • 7-hydroxy-3,7-dimethyl octan-1-al
  • 7-hydroxy-3,7-dimethyl octanal
  • 7-hydroxy-3,7-dimethyloctan-1-al
  • 7-hydroxy-3,7-dimethyloctanal
  • 7-hydroxy-3,7-dimethyloctanol
  • hydroxy-citronellal HMS citriodora 01
  • hydroxy-citronellal HMS citronnelle 03
  • 7-hydroxycitronellal
  • hydroxycitronellal FCC
  • laurinal (Takasago)
  • lily aldehyde
  • muguet synthetic
  • muguettine principe
  • muguettine principle
  • musuet synthetic
  • 1-octanal, 3,7-dimethyl-7-hydroxy-
  • octanal, 7-hydroxy-3,7-dimethyl-
  • oxdihydrocitronellal
  • 7-hydroxy-3,7-dimethyloctanal
  • Cyclalia
  • Cyclosia
  • 3,7-Dimethyl-7-hydroxyoctanal
  • Fixol
  • Laurine
  • Lilyl aldehyde
  • Phixia
  • Citronellal, hydroxy-
  • 7-Hydroxycitronellal
  • (±)-Hydroxycitronellal
  • NSC 406740
  • Cyclosia base
  • 3,7-Dimethyl-7-hydroxyoctan-1-al

US / EU / FDA / JECFA / FEMA / Scholar / Patents

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Literature & References

7-hydroxy-3,7-dimethyloctanal
NIST Chemistry WebBook:Search Inchi
Canada Domestic Sub. List:107-75-5
Pubchem (cid):7888
Pubchem (sid):134972585
Publications by PubMed
Fragrance allergens in 'specific' cosmetic products.
A smelling trip into the past: the influence of synthetic materials on the history of perfumery.
Fragrance ingredient labelling in products on sale in the U.K.
A stronger patch test elicitation reaction to the allergen hydroxycitronellal plus the irritant sodium lauryl sulfate.
Sensitization methodology and primary prevention of the research institute for fragrance materials.
Hydroxycitronellal: A survey of consumer patch-test sensitization.
Allergenicity evaluation of fragrance mix and its ingredients by using ex vivo local lymph node assay-BrdU endpoints.
The Fantastic Four: A plug 'n' play set of optimal control pulses for enhancing NMR spectroscopy.
Contact allergy caused by fragrance mix and Myroxylon pereirae (balsam of Peru)--a retrospective study.
Fragrance allergens in 'specific' cosmetic products.
Effect of a microemulsion system on hapten-peptide reactivity studies: examples of hydroxycitronellal and citral, fragrance skin sensitizers, with glutathione.
Determination of suspected allergens in cosmetic products by headspace-programmed temperature vaporization-fast gas chromatography-quadrupole mass spectrometry.
Polyvalent type IV sensitizations to multiple fragrances and a skin protection cream in a metal worker.
Atopic dermatitis and allergic reactions to individual fragrance chemicals.
HMOX1 and NQO1 genes are upregulated in response to contact sensitizers in dendritic cells and THP-1 cell line: role of the Keap1/Nrf2 pathway.
Allergic and photoallergic contact dermatitis from ketoprofen: evaluation of cross-reactivities by a combination of photopatch testing and computerized conformational analysis.
A smelling trip into the past: the influence of synthetic materials on the history of perfumery.
Chemicals with weak skin sensitizing properties can be identified using low-density microarrays on immature dendritic cells.
Fragrance ingredient labelling in products on sale in the U.K.
[Contact allergy to fragrances].
GC-MS quantification of suspected volatile allergens in fragrances. 2. Data treatment strategies and method performances.
Determination of fragrance allergens in cosmetics by size-exclusion chromatography followed by gas chromatography-mass spectrometry.
Correlations of patch test reactivity and the repeated open application test (ROAT)/provocative use test (PUT).
Ethanol and diethyl phthalate: vehicle effects in the local lymph node assay.
A stronger patch test elicitation reaction to the allergen hydroxycitronellal plus the irritant sodium lauryl sulfate.
The fragrance hand immersion study - an experimental model simulating real-life exposure for allergic contact dermatitis on the hands.
Deodorants: an experimental provocation study with hydroxycitronellal.
Application of the risk assessment paradigm to the induction of allergic contact dermatitis.
Sensitization methodology and primary prevention of the research institute for fragrance materials.
Fragrance chemicals in domestic and occupational products.
Characterization of T cell responses to fragrances.
Amino acid-catalyzed conversion of citral: cis-trans isomerization and its conversion into 6-methyl-5-hepten-2-one and acetaldehyde.
Content of fragrance mix ingredients and customer complaints of cosmetic products.
The frequency of fragrance allergy in a patch-test population over a 17-year period.
Subchronic inhalation studies of complex fragrance mixtures in rats and hamsters.
Dose-response studies of contact allergens using 3 guinea pigs models.
Contents of fragrance allergens in children's cosmetics and cosmetic-toys.
Deodorants on the European market: quantitative chemical analysis of 21 fragrances.
Natural ingredients based cosmetics. Content of selected fragrance sensitizers.
In vitro primary sensitization of hapten-specific T cells by cultured human epidermal Langerhans cells--a screening predictive assay for contact sensitizers.
Exposure to selected fragrance materials. A case study of fragrance-mix-positive eczema patients.
In vitro sensitization of human T cells with hapten-treated Langerhans cells: a screening test for the identification of contact allergens.
Testing with fragrance mix. Is the addition of sorbitan sesquioleate to the constituents useful?
Quantitative analysis on odor intensity and quality of optical isomers in turtle olfactory system.
Riehl's melanosis: pigmented contact dermatitis caused by fragrances.
Aspects of pharmaceutical and chemical standardization of patch test materials.
Terpenoid biotransformation in mammals. V. Metabolism of (+)-citronellal, (+-)-7-hydroxycitronellal, citral, (-)-perillaldehyde, (-)-myrtenal, cuminaldehyde, thujone, and (+-)-carvone in rabbits.
Allergic contact sensitization potential of hydroxycitronellal in humans.
Assessment of the ability of mice fed on vitamin A supplemented diet to respond to a variety of potential contact sensitizers.
Perfume dermatitis.
Reactions in selected patients to 22 fragrance materials.
Facial psoriasis caused by contact allergy to linalool and hydroxycitronellal in an after-shave.
Hydroxycitronellal: A survey of consumer patch-test sensitization.
Perfume dermatitis from the cosmetic ingredients oakmoss and hydroxycitronellal.

Other Information

(IUPAC):Atomic Weights of the Elements 2011 (pdf)
Videos:The Periodic Table of Videos
tgsc:Atomic Weights use for this web site
(IUPAC):Periodic Table of the Elements
FDA Substances Added to Food (formerly EAFUS):View
CHEBI:View
CHEMBL:View
HMDB (The Human Metabolome Database):HMDB31739
FooDB:FDB008408
Export Tariff Code:2912.30.0000
Typical G.C.
ChemSpider:View
Wikipedia:View
FAO:Hydroxycitronellal

PhysChem Properties

Material listed in food chemical codex Yes
Molecular weight 172.26780700684
Specific gravity @ 25 °C
Pounds per Gallon 7.63 to 7.664
Specific gravity @ 15 °C
Pounds per Gallon 7.713 to 7.754
Refractive Index 1.447 to 1.45 @ 20 °C
Boiling Point 94 to 96°C @ 1 mm Hg
Acid Value 3 max KOH/g
Vapor Pressure 0.003 mmHg @ 25 °C
Vapor Density 5.9
Flash Point TCC Value 123.89 °C TCC
logP (o/w) 1.654 est
Shelf life 24 months (or longer if stored properly.)
Storage notes Store in cool, dry place in tightly sealed containers, protected from heat and light.
Solubility
benzyl alcohol Yes
essential oils Yes
ethyl alcohol, 1 part 50% alcohol Yes
ethyl alcohol, 1.5 vol of 50% alcohol Yes
ethyl alcohol, 60% alcohol Yes
fixed oils Yes
paraffin oil, slightly Yes
water, slightly Yes
water, 3042 mg/L @ 25 °C (est) Yes
glycerin No
Stability
APC: 0.5 - 5% Unspecified
candle: 0.5 - 5% Unspecified
detergent: 0.5 - 5% Unspecified
fine fragrances: 0.5 - 5% Unspecified
shampoo: 0.5 - 5% Unspecified
shower gel: 0.5 - 5% Unspecified
soap: 0.5 - 5% Unspecified
softener: Unspecified

Organoleptic Properties

Odor Type: Floral
floral, lily, sweet, green, waxy, tropical, melon, citrus
Odor strength medium
Substantivity 218 hour(s) at 100.00 %
Luebke, William tgsc, (1982) At 100.00 %. floral lily sweet green waxy tropical melon
Mosciano, Gerard P&F 15, No. 2, 69, (1990) Sweet floral perfume-like notes with green citrus and melon undertones
Flavor Type: Waxy
sweet, waxy, green, floral, tropical, melon
Luebke, William tgsc, (1982) Sweet waxy green floral tropical melon
Mosciano, Gerard P&F 15, No. 2, 69, (1990) At 50.00 ppm. Sweet, waxy, green with floral, tropical melon notes
General comment Sweet waxy green floral tropical melon

Occurrences

Safety Information

Safety information

Preferred SDS: View
European information :
Most important hazard(s):
Xi - Irritant
R 36/38 - Irritating to skin and eyes.
R 41 - Risk of serious damage to eyes.
R 43 - May cause sensitisation by skin contact.
S 02 - Keep out of the reach of children.
S 24 - Avoid contact with skin.
S 26 - In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S 36 - Wear suitable protective clothing.
Hazards identification
Classification of the substance or mixture
GHS Classification in accordance with 29 CFR 1910 (OSHA HCS)
Skin irritation (Category 2), H315
Skin sensitisation (Category 1), H317
Eye irritation (Category 2A), H319
GHS Label elements, including precautionary statements
Pictogramexclamation-mark.jpg
Signal word Warning
Hazard statement(s)
H315 - Causes skin irritation
H317 - May cause an allergic skin reaction
H319 - Causes serious eye irritation
Precautionary statement(s)
P261 - Avoid breathing dust/fume/gas/mist/vapours/spray.
P264 - Wash skin thouroughly after handling.
P272 - Contaminated work clothing should not be allowed out of the workplace.
P280 - Wear protective gloves/protective clothing/eye protection/face protection.
P302 + P352 - IF ON SKIN: wash with plenty of soap and water.
P305 + P351 + P338 - IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
P333 + P313 - IF SKIN irritation or rash occurs: Get medical advice/attention.
P337 + P313 - IF eye irritation persists: Get medical advice/attention.
P362 - Take off contaminated clothing and wash before reuse.
P501 - Dispose of contents/ container to an approved waste disposal plant.
Human Experience:
5 % solution: no irritation or sensitization.
Oral/Parenteral Toxicity:
oral-rat LD50 > 5000 mg/kg
Food and Cosmetics Toxicology. Vol. 12, Pg. 921, 1974.

Dermal Toxicity:
skin-rabbit LD50 > 2000 mg/kg
Food and Cosmetics Toxicology. Vol. 12, Pg. 921, 1974.

Inhalation Toxicity:
Not determined

Safety in use information

Category:
flavor and fragrance agents
RIFM Fragrance Material Safety Assessment: Search
IFRA Code of Practice Notification of the 49th Amendment to the IFRA Code of Practice
IFRA Critical Effect:
Dermal sensitization
IFRA fragrance material specification:
Should not be used such that the level in finished cosmetic products exceeds 1.0%. Based on a review of a large number of animal and human test data (IFRA guidelines).
View the IFRA Standard
View IFRA Standards Library for complete information.
Please review Amendment 49 IFRA documentation for complete information.
IFRA RESTRICTION LIMITS IN THE FINISHED PRODUCT (%):
Category 1: Products applied to the lips
0.38 %
Category 2: Products applied to the axillae
0.11 %
Category 3: Products applied to the face/body using fingertips
2.30 %
Category 4: Products related to fine fragrance
2.10 %
Category 5: Products applied to the face and body using the hands (palms), primarily leave-on
Category 5A: Body lotion products applied to the body using the hands (palms), primarily leave-on
0.53 %
Category 5B: Face moisturizer products applied to the face using the hands (palms), primarily leave-on
0.53 %
Category 5C: Hand cream products applied to the hands using the hands (palms), primarily leave-on
0.53 %
Category 5D: Baby Creams, baby Oils and baby talc
0.53 %
Category 6: Products with oral and lip exposure
1.20 %
Category 7: Products applied to the hair with some hand contact
Category 7A: Rinse-off products applied to the hair with some hand contact
4.30 %
Category 7B: Leave-on products applied to the hair with some hand contact
4.30 %
Category 8: Products with significant anogenital exposure
0.22 %
Category 9: Products with body and hand exposure, primarily rinse off
4.10 %
Category 10: Household care products with mostly hand contact
Category 10A: Household care excluding aerosol products (excluding aerosol/spray products)
15.00 %
Category 10B: Household aerosol/spray products
15.00 %
Category 11: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate
Category 11A: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate without UV exposure
8.20 %
Category 11B: Products with intended skin contact but minimal transfer of fragrance to skin from inert substrate with potential UV exposure
8.20 %
Category 12: Products not intended for direct skin contact, minimal or insignificant transfer to skin
No Restriction
Notes:
IFRA FLAVOR REQUIREMENTS:

Due to the possible ingestion of small amounts of fragrance ingredients from their use in products in Categories 1 and 6, materials must not only comply with IFRA Standards but must also be recognized as safe as a flavoring ingredient as defined by the IOFI Code of Practice (www.iofi.org). For more details see chapter 1 of the Guidance for the use of IFRA Standards.

Maximised Survey-derived Daily Intakes (MSDI-EU): 24.00 (μg/capita/day)
Use levels for FEMA GRAS flavoring substances on which the FEMA Expert Panel based its judgments that the substances are generally recognized as safe (GRAS).
The Expert Panel also publishes separate extensive reviews of scientific information on all FEMA GRAS flavoring substances and can be found at FEMA Flavor Ingredient Library
publication number: 3
Click here to view publication 3
average usual ppmaverage maximum ppm
baked goods: -10.00000
beverages(nonalcoholic): -3.50000
beverages(alcoholic): --
breakfast cereal: --
cheese: --
chewing gum: -16.00000
condiments / relishes: --
confectionery froastings: --
egg products: --
fats / oils: --
fish products: --
frozen dairy: -13.00000
fruit ices: -13.00000
gelatins / puddings: -0.30000
granulated sugar: --
gravies: --
hard candy: -9.40000
imitation dairy: --
instant coffee / tea: --
jams / jellies: --
meat products: --
milk products: --
nut products: --
other grains: --
poultry: --
processed fruits: --
processed vegetables: --
reconstituted vegetables: --
seasonings / flavors: --
snack foods: --
soft candy: --
soups: --
sugar substitutes: --
sweet sauces: --

Safety references

European Food Safety Athority(EFSA):Flavor usage levels; Subacute, Subchronic, Chronic and Carcinogenicity Studies; Developmental / Reproductive Toxicity Studies; Genotoxicity Studies...

European Food Safety Authority (EFSA) reference(s):

Opinion of the Scientific Panel on Food Additives, Flavourings, Processing Aids and Materials in contact with Food (AFC) on a request from the Commission related to - Flavouring Group Evaluation 10: Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30 - (Commission Regulation (EC) No 1565/2000 of 18 July 2000)
View page or View pdf

Flavouring Group Evaluation 10, Revision 1 (FGE10 Rev1)[1] - Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30 - Scientific Opinion of the Panel on Food Additives, Flavourings, Processing Aids and Materials in Contact with Food (AFC)
View page or View pdf

Flavouring Group Evaluation 64 (FGE.64): Consideration of aliphatic acyclic diols, triols, and related substances evaluated by JECFA (57th meeting) structurally related to aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30 evaluated by EFSA in FGE.10Rev1 (EFSA, 2008ab)
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 92 (FGE.92): Consideration of aliphatic acyclic diols, triols, and related substances evaluated by JECFA (68th meeting) structurally related to aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones evaluated by EFSA in FGE.10Rev1 (2009)
View page or View pdf

Scientific Opinion on Flavouring Group Evaluation 10, Revision 2 (FGE.10Rev2): Aliphatic primary and secondary saturated and unsaturated alcohols, aldehydes, acetals, carboxylic acids and esters containing an additional oxygenated functional group and lactones from chemical groups 9, 13 and 30
View page or View pdf

EPI System: View
Daily Med:search
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA Substance Registry Services (TSCA):107-75-5
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :7888
National Institute of Allergy and Infectious Diseases:Data
SCCNFP:opinion
WGK Germany:1
7-hydroxy-3,7-dimethyloctanal
Chemidplus:0000107755
RTECS:RG7850000 for cas# 107-75-5