The geosmin products listed by Sigma-Aldrich (CAS Registry number [16423-19-1]) are synthetic, and would be exactly a 50:50 mixture of the (+) and (-) isomers. Specifically, the natural (-) isomer is (4S,4aS,8aR)-4,8a-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol. Therefore, the unnatural (+) isomer (the mirror image) is (4R,4aR,8aS)-4,8a-Dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol.This information has not been confirmed by a specific rotation measurement or chiral analysis, but is known based on the method of preparation.
UC18
(±)-Geosmin
≥97% (GC), liquid (oil)
Synonym(s):
2β,6α-Dimethylbicyclo[4.4.0]decan-1β-ol
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About This Item
Empirical Formula (Hill Notation):
C12H22O
CAS Number:
Molecular Weight:
182.30
MDL number:
UNSPSC Code:
12161501
PubChem Substance ID:
NACRES:
NA.77
¥63,700
List Price¥91,000Save 30%Estimated to ship onApril 07, 2025
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Product Name
(±)-Geosmin, ≥97% (GC)
Quality Level
Assay
≥97% (GC)
form
liquid (oil)
color
colorless
storage temp.
2-8°C
SMILES string
CC1CCCC2(C)CCCCC12O
InChI
1S/C12H22O/c1-10-6-5-8-11(2)7-3-4-9-12(10,11)13/h10,13H,3-9H2,1-2H3
InChI key
JLPUXFOGCDVKGO-UHFFFAOYSA-N
Application
Biochem/physiol Actions
(±)-Geosmin is produced by Streptomyces coelicolor and cyanobacteria.[3]
Signal Word
Warning
Hazard Statements
Precautionary Statements
Hazard Classifications
Eye Irrit. 2
Storage Class Code
10 - Combustible liquids
WGK
WGK 3
Flash Point(F)
Not applicable
Flash Point(C)
Not applicable
Personal Protective Equipment
dust mask type N95 (US), Eyeshields, Gloves
Regulatory Listings
Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.
JAN Code
UC18-10MG:
UC18-BULK:
UC18-5MG:
UC18-VAR:
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