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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

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.

signalword

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

3 - Flammable liquids

wgk_germany

WGK 2

flash_point_f

51.8 °F - closed cup

flash_point_c

11 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

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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Buttery, R.G., et al.
Journal of Agricultural and Food Chemistry, 24, 419 and 1246-419 and 1246 (1976)
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)
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)
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)

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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