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General Material Information

Preferred name geosmin
Trivial Name Geosmin
Short Description [4S-(4a,4aa,8ab)]-octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
Formula C12 H22 O
CAS Number 19700-21-1
ECHA Number 243-239-8
FDA UNII MYW912WXJ4
Nikkaji Number J3.785K
Beilstein Number 2410491
COE Number 10216
xLogP3-AA 3.30 (est)
NMR Predictor External link
Synonyms
  • (4S,4aS,8aR)-4,8a- dimethyl decalin-4a-ol
  • (4S,4aS,8aR)-4,8a- dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
  • 1,10-trans- dimethyl-trans-(9)-decalol
  • (4S,4aS,8aR)-4,8a- dimethyloctahydro-4a(2H)-naphthalenol
  • (4S,4aS,8aR)-4,8a- dimethyloctahydronaphthalen-4a(2H)-ol
  • 4a(2H)- naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
  • [4S-(4a,4aa,8ab)]- octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
  • (4S-(4alpha,4aalpha,8abeta))- octahydro-4,8a-dimethyl-4a(2H)-naphthol
  • octahydro-4,8alpha-dimethyl-4alpha(2H)-naphthalenol
  • octahydro-4alpha,8abeta-dimethyl-4aalpha(2H)-naphthol
  • (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
  • 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
  • 4aα(2H)-Naphthol, octahydro-4α,8aβ-dimethyl-
  • 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, [4S-(4α,4aα,8aβ)]-
  • (4S,4aS,8aR)-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
  • (-)-Geosmin
  • Geonol

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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
CHEBI:View
CHEMBL:View
KEGG (GenomeNet):C16286
HMDB (The Human Metabolome Database):HMDB36461
FooDB:FDB015352
YMDB (Yeast Metabolome Database):YMDB01699
VCF-Online:VCF Volatile Compounds in Food
ChemSpider:View
Wikipedia:View

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PhysChem Properties

Material listed in food chemical codex No
Molecular weight 182.30653381348
Boiling Point 270 to 271°C @ 760 mm Hg
Vapor Pressure 0.001 mmHg @ 25 °C
Flash Point TCC Value 103.89 °C TCC
logP (o/w) 3.497 est
Solubility
alcohol Yes
water, 156.7 mg/L @ 25 °C (est) Yes
water No

Organoleptic Properties

Odor Type: Earthy
fresh, musty, earthy, humus
General comment At 1.00 % in dipropylene glycol. fresh musty earthy soil

Occurrences

Safety Information

Safety information

European information :
Most important hazard(s):
Xi - Irritant
R 36/37/38 - Irritating to eyes, respiratory system, and 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)
None found.
GHS Label elements, including precautionary statements
Pictogram
Hazard statement(s)
None found.
Precautionary statement(s)
None found.
Oral/Parenteral Toxicity:
Not determined
Dermal Toxicity:
Not determined
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
Recommendation for geosmin usage levels up to:
0.0500 % in the fragrance concentrate.

Safety references

EPI System: View
AIDS Citations:Search
Cancer Citations:Search
Toxicology Citations:Search
EPA GENetic TOXicology:Search
EPA ACToR:Toxicology Data
EPA Substance Registry Services (SRS):Registry
Laboratory Chemical Safety Summary :29746
National Institute of Allergy and Infectious Diseases:Data
WGK Germany:1
(4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
Chemidplus:0019700211