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G5908

Sigma-Aldrich

(±)-Geosmin solution

2 mg/mL in methanol, ≥97%

Synonym(s):

DL-Geosmin, rel-(4R,4aR,8aS)-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol

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About This Item

Empirical Formula (Hill Notation):
C12H22O
CAS Number:
16423-19-1
Molecular Weight:
182.30
EC Number:
200-659-6
UNSPSC Code:
12352100
PubChem Substance ID:
24895238
NACRES:
NA.22

Quality Level

200

Assay

≥97% (calc. on dry substance, GC)
≥97%

concentration

2 mg/mL in methanol

storage temp.

−20°C

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

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Application

(±)-Geosmin solution is commonly used in the odorant removal/degradation studies in the water and food chemistry.

Other Notes

The (−)-enantiomer is the principal component of beet aroma.

Signal Word

Danger

Hazard Classifications

Acute Tox. 3 Dermal - Acute Tox. 3 Inhalation - Acute Tox. 3 Oral - Flam. Liq. 2 - STOT SE 1

Target Organs

Eyes,Central nervous system

Storage Class Code

3 - Flammable liquids

WGK

WGK 2

Flash Point(F)

51.8 °F - closed cup

Flash Point(C)

11 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificates of Analysis (COA)

Search for Certificates of Analysis (COA) by entering the products Lot/Batch Number. Lot and Batch Numbers can be found on a product’s label following the words ‘Lot’ or ‘Batch’.

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Removal of 2-MIB and geosmin using UV/persulfate: contributions of hydroxyl and sulfate radicals.
Xie, Pengchao et al.
Water Research, 69(6), 223-233 (2015)
Buttery, R.G., et al.
Journal of Agricultural and Food Chemistry, 24, 419 and 1246-419 and 1246 (1976)
Development of long-life-cycle tablet ceramic adsorbent for geosmin removal from water solution.
Chen, Rongzhi aet al.
Applied Surface Science, 257(6), 2091-2096 (2011)
Shuke Xiao et al.
eLife, 8 (2019-10-28)
Odorant binding proteins (Obps) are expressed at extremely high levels in the antennae of insects, and have long been believed essential for carrying hydrophobic odorants to odor receptors. Previously we found that when one functional type of olfactory sensillum in
Stable TiO 2-USY zeolite composite coatings for efficient adsorptive and photocatalytic elimination of geosmin from water.
Wee, Lik H et al.
Journal of Material Chemistry A, 3(5), 2258-2264 (2015)
View All Related Papers

Protocols

Standard Methods 6040D: GC Analysis of Geosmin and 2-MIB on SLB®-5ms after SPME using 50/30 µm DVB/Carboxen/PDMS Fiber

Separation of 2-Isopropyl-3-methoxypyrazine 20 ppt; 2-Isobutyl-3-methoxypyrazine; 2-Methylisoborneol; (±)-Geosmin 10 ppt

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