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19700-21-1

19700-21-1 Structure

19700-21-1 Structure
IdentificationBack Directory
[Name]

GEOSMIN
[CAS]

19700-21-1
[Synonyms]

GEOSMIN
GEOSMINE
GEOSMIN STANDARD
4,8a-Dimethyloctahydro-4a(2H)-naphthalenol
GeosminStandardSolution(0.1mg/mlMethanolSolution)
geosmin,octahydro-4,8a-dimethyl-4a(2H)-Naphthalenol
octahydro-4-alpha,8a-beta-dimethyl-4a-alpha-(2h)-naphtho
[4S-(4α,4aα,8aβ)]-Octahydro-4,8a-dimethyl-4a(2H)-naphthol
4a-alpha-(2H)-Naphthol, octahydro-4-alpha,8a-beta-dimethyl-
4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
[4S-(4alpha,4aalpha,8abeta)]-octahydro-4,8a-dimethyl-4a(2H)-naphthol
4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-,(4alpha,4aalpha,8abeta)-
octahydro-4,8a-dimethyl-,(4s-(4-alpha,4a-alpha,8a-beta))-4a(2h)-naphthaleno
4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, [4S-(4alpha,4aalpha,8abeta)]-
[EINECS(EC#)]

243-239-8
[Molecular Formula]

C12H22O
[MDL Number]

MFCD00210292
[MOL File]

19700-21-1.mol
[Molecular Weight]

182.3
Chemical PropertiesBack Directory
[alpha ]

D25 -16.5°
[Boiling point ]

bp 270°
[density ]

0.985±0.06 g/cm3(Predicted)
[storage temp. ]

-20°C
[solubility ]

Chloroform (Slightly), Methanol (Slightly)
[form ]

Oil
[pka]

15.23±0.60(Predicted)
[color ]

Colourless
[Odor]

at 1.00 % in dipropylene glycol. fresh musty earthy soil
[Odor Threshold]

0.0000065ppm
[Odor Type]

earthy
[LogP]

3.497 (est)
[EPA Substance Registry System]

4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)- (19700-21-1)
Hazard InformationBack Directory
[Description]

Geosmin and other volatile compounds are produced by a variety of bacteria, cyanobacteria, algae, and fungi. They are responsible for some of the odors of water supplies and food sources. Odor production is greatest when nutrient production and dissolved oxygen are high.
[Uses]

Geosmin is an earthly odorant responsible for the strong scent (petrichor) that occurs in the air when rain falls after a dry spell of weather or when soil is disturbed.
[Uses]

Geosmin is an earthly odorant resposible for the strong scent (petrichor) that occurs in the air when rain falls after a dry spell of weather or when soil is disturbed.
[Definition]

ChEBI: (-)-geosmin is the (-)-stereoisomer of geosmin, having 4S,4aS,8aR configuration. It is an enantiomer of a (+)-geosmin.
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