Cas no 19700-21-1 (Geosmin Standard)
Geosmin Standard Chemical and Physical Properties
Names and Identifiers
-
- 4a(2H)-Naphthalenol,octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
- (4S,4aS,8aR)-4,8a-dimethyl-1,2,3,4,5,6,7,8-octahydronaphthalen-4a-ol
- Geosmin
- EINECS 243-239-8
- trans-1,10-dimethyl-trans-9-decalol
- GEOSMINE
- GEOSMIN STANDARD
- 4,8a-Dimethyloctahydro-4a(2H)-naphthalenol
- geosmin,octahydro-4,8a-dimethyl-4a(2H)-Naphthalenol
- octahydro-4-alpha,8a-beta-dimethyl-4a-alpha-(2h)-naphtho
- 4a-alpha-(2H)-Naphthol, octahydro-4-alpha,8a-beta-dimethyl-
- [4S-(4alpha,4aalpha,8abeta)]-octahydro-4,8a-dimethyl-4a(2H)-naphthol
- GeosminStandardSolution(0.1mg/mlMethanolSolution)
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S,4aS,8aR)-
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, [4S-(4alpha,4aalpha,8abeta)]-
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-,(4alpha,4aalpha,8abeta)-
- octahydro-4,8a-dimethyl-,(4s-(4-alpha,4a-alpha,8a-beta))-4a(2h)-naphthaleno
- NS00122563
- DTXSID801024112
- SCHEMBL50009
- (4S-(4alpha,4aalpha,8abeta))-Octahydro-4,8a-dimethyl-4a(2H)-naphthol
- MYW912WXJ4
- 1,10-Dimethyl-9-decalol
- (4S,4aS,8aR)-4,8a-dimethyl-decahydronaphthalen-4a-ol
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, [4S-(4.alpha.,4a.alpha.,8a.beta.)]-
- FEMA NO. 4682
- (4S,4aS,8aR)-4,8a-dimethyloctahydronaphthalen-4a(2H)-ol
- (4S,4aS,8aR)-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
- JLPUXFOGCDVKGO-TUAOUCFPSA-N
- GEOSMIN [MI]
- UNII-MYW912WXJ4
- Q420233
- (-)-geosmin
- (+/-)-Geosmin 100 microg/mL in Methanol
- NCGC00165950-01
- 4,8a-Dimethyloctahydro-4a(2H)-naphthalenol #
- 4a-.alpha.-(2H)-Naphthol, octahydro-4-.alpha.,8a-.beta.-dimethyl-
- 4,8alpha-dimethyl-octahydro-naphthalen-4alpha-ol
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-,(4.alpha.,4a.alpha.,8a.beta.)-
- rac Geosmin
- CHEMBL2374043
- 39 - Geosmin and MIB
- trans-1,10-dimethyl-trans-decalol
- 4,8A-DIMETHYLOCTAHYDRONAPHTHALEN-4A(2H)-OL
- 4a(2H)-Naphthalenol, octahydro-4,8a-dimethyl-, (4S-(4-alpha,4a-alpha,8a-beta))-
- Octahydro-4alpha,8abeta-dimethyl-4aalpha(2H)-naphthol
- (+/-)-Geosmin 10 microg/mL in Methanol
- CHEBI:46702
- 19700-21-1
- 5173-70-6
- 16423-19-1
- 16452-32-7
- 5173-69-3
- [4S-(4alpha,4aalpha,8abeta)]-Octahydro-4,8a-dimethyl-4a(2H)-naphthalenol
- Natural Geosmin
- 23333-91-7
- Geosmin Standard
-
- Inchi： 1S/C12H22O/c1-10-6-5-8-11(2)7-3-4-9-12(10,11)13/h10,13H,3-9H2,1-2H3/t10-,11+,12-/m0/s1
- InChI Key： JLPUXFOGCDVKGO-TUAOUCFPSA-N
- SMILES： O[C@]12CCCC[C@]1(C)CCC[C@@H]2C
Computed Properties
- Exact Mass: 182.16700
- Monoisotopic Mass: 182.167
- Isotope Atom Count: 0
- Hydrogen Bond Donor Count: 1
- Hydrogen Bond Acceptor Count: 1
- Heavy Atom Count: 13
- Rotatable Bond Count: 0
- Complexity: 201
- Covalently-Bonded Unit Count: 1
- Defined Atom Stereocenter Count: 3
- Undefined Atom Stereocenter Count : 0
- Defined Bond Stereocenter Count: 0
- Undefined Bond Stereocenter Count: 0
- Surface Charge: 0
- Tautomer Count: nothing
- XLogP3: 3.3
- Topological Polar Surface Area: 20.2A^2
Experimental Properties
- Color/Form: Uncertain
- Density: 0.985
- Melting Point: Not available
- Boiling Point: bp 270°
- Flash Point: 104.2 °C
- Refractive Index: 1.506
- PSA: 20.23000
- LogP: 3.11780
- Specific Rotation: D25 -16.5°
- Solubility: Uncertain
Geosmin Standard Security Information
- Signal Word：warning
- Hazard Statement： H303May be harmful if swallowed+H313Skin contact may be harmful+H333Inhalation may be harmful to the body
-
Warning Statement：
P264Thoroughly clean after treatment
P280Wear protective gloves/Wear protective clothing/Wear protective goggles/Wear a protective mask
P305If it enters the eyes
P351Rinse carefully with water for a few minutes
P338Remove the contact lens(If any)And easy to operate,Continue flushing
P337If eye irritation persists
P313Obtain medical advice/care - Safety Instruction： H303May be harmful if swallowed+H313Skin contact may be harmful+H333Inhalation may be harmful to the body
- Storage Condition：-20°C
Geosmin Standard Pricemore >>
| Related Categories | No. | Product Name | Cas No. | Purity | Specification | Price | update time | Inquiry |
|---|---|---|---|---|---|---|---|---|
| TRC | G364600-25mg |
Geosmin |
19700-21-1 | 25mg |
$ 4451.00 | 2023-09-07 | ||
| TRC | G364600-50mg |
Geosmin |
19700-21-1 | 50mg |
$ 5135.00 | 2023-09-07 | ||
| TRC | G364600-100mg |
Geosmin |
19700-21-1 | 100mg |
$ 8211.00 | 2023-09-07 | ||
| FUJIFILM | 077-01911-20mg |
Geosmin Standard |
19700-21-1 | 20mg |
JPY 33400 | 2023-09-15 | ||
| SHENG KE LU SI SHENG WU JI SHU | sc-490886-25 mg |
Geosmin, |
19700-21-1 | 25mg |
￥50,127.00 | 2023-07-10 | ||
| SHENG KE LU SI SHENG WU JI SHU | sc-490886-25mg |
Geosmin, |
19700-21-1 | 25mg |
￥50127.00 | 2023-09-05 | ||
| A2B Chem LLC | AE99545-25mg |
GEOSMIN |
19700-21-1 | 25mg |
$4443.00 | 2024-04-20 | ||
| A2B Chem LLC | AE99545-50mg |
GEOSMIN |
19700-21-1 | 50mg |
$5107.00 | 2024-04-20 | ||
| A2B Chem LLC | AE99545-100mg |
GEOSMIN |
19700-21-1 | 100mg |
$8094.00 | 2024-04-20 |
Geosmin Standard Related Literature
-
Yaling Zhang,Chunhui Dai,Shiwei Zhou,Bin Liu Chem. Commun., 2018,54, 10092-10095
-
Ji-Ping Wei Nanoscale, 2015,7, 11815-11832
-
Manickam Bakthadoss,Tadiparthi Thirupathi Reddy,Vishal Agarwal,Duddu S. Sharada Chem. Commun., 2022,58, 1406-1409
-
Joseph H. Bisesi,Tara Sabo-Attwood Environ. Sci.: Nano, 2014,1, 574-583
Additional information on Geosmin Standard
Comprehensive Analysis of Geosmin Standard (CAS No. 19700-21-1): Properties, Applications, and Industry Insights
Geosmin Standard (CAS No. 19700-21-1) is a naturally occurring organic compound renowned for its distinctive earthy odor. This bicyclic alcohol is a secondary metabolite produced by soil-dwelling bacteria, particularly Streptomyces species, and certain blue-green algae. The compound's name originates from the Greek words "geo" (earth) and "osme" (smell), reflecting its characteristic aroma often associated with rainfall on dry soil—a phenomenon colloquially termed "petrichor."
In recent years, Geosmin Standard has gained significant attention in environmental monitoring and water treatment industries due to its role as a taste and odor (T&O) compound in drinking water. With increasing consumer awareness about water quality standards, municipalities and bottling plants frequently test for geosmin contamination, as concentrations as low as 10 nanograms per liter can be detected by human senses. Advanced analytical techniques like GC-MS (Gas Chromatography-Mass Spectrometry) and SPME (Solid-Phase Microextraction) utilize Geosmin Standard as a reference material for accurate quantification.
The food and beverage industry extensively employs Geosmin Standard for sensory analysis and quality control. Winemakers monitor geosmin levels to prevent "cork taint" in wines, while aquaculture facilities study its impact on fish flavor profiles. Interestingly, consumer searches for "why does my tap water smell earthy" or "how to remove musty taste from fish" often lead to discussions about geosmin's chemical behavior—a testament to its real-world relevance.
From a scientific research perspective, CAS No. 19700-21-1 serves as a crucial standard in olfaction studies and ecological research. Its detection in climate change studies helps track microbial activity shifts in soil ecosystems. Recent publications highlight geosmin's potential as a biomarker for cyanobacterial blooms, addressing growing concerns about harmful algal blooms (HABs) in freshwater systems—a topic frequently searched alongside "lake water quality testing" and "algae toxin removal."
The fragrance industry utilizes Geosmin Standard in perfume formulations to create earthy, natural accords. With rising demand for biomimetic fragrances and sustainable scent technologies, perfumers experiment with geosmin concentrations to replicate outdoor experiences—responding to market trends favoring "forest bathing aromas" and "nature-inspired perfumery." Analytical-grade Geosmin Standard ensures precise replication of these complex olfactory profiles.
Quality specifications for Geosmin Standard (CAS No. 19700-21-1) typically require ≥98% purity, verified through HPLC analysis. Proper storage at -20°C under argon atmosphere maintains stability, while amber glass vials prevent photodegradation. These protocols address common user queries about "how to store geosmin solutions" and "geosmin shelf life," reflecting practical concerns in laboratory settings.
Emerging applications include biomedical research exploring geosmin's interactions with human olfactory receptors. Studies investigating "odor threshold variability" among populations utilize Geosmin Standard as a reference stimulus. Additionally, agricultural scientists examine its role in plant-microbe interactions, particularly in organic farming systems where soil health monitoring is paramount.
From an analytical chemistry standpoint, Geosmin Standard presents unique challenges due to its low detection thresholds and volatile nature. Laboratories frequently search for "best columns for geosmin analysis" and "internal standards for earthy odorants," highlighting the need for optimized methodologies. Recent advancements in TD-GC-TOF/MS (Thermal Desorption Gas Chromatography-Time of Flight Mass Spectrometry) have improved detection limits to sub-ppt levels.
The commercial availability of Geosmin Standard in various formulations—including neat liquids, certified reference materials (CRMs), and custom concentration solutions—caters to diverse industry needs. Suppliers often provide method validation data and stability studies, addressing quality assurance requirements in ISO 17034-accredited laboratories. This aligns with growing market demands for "traceable analytical standards" and "ISO-certified reference materials."
Looking forward, research into geosmin biodegradation pathways and advanced oxidation processes (AOPs) for its removal from water supplies continues to expand. These developments respond to global concerns about emerging contaminants and water scarcity—topics consistently ranking high in environmental science searches. As regulatory bodies worldwide tighten odor threshold regulations for potable water, the importance of reliable Geosmin Standard (CAS No. 19700-21-1) in compliance testing will only increase.
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