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Alfa Aesar™ (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid, 99%

$116.61 - $452.88

Chemical Identifiers

Chemical Name or Material (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid
CAS 17257-71-5
Molecular Formula C10H9F3O3
Formula Weight 234.18g/mol
MDL Number MFCD00064200
Beilstein 3591561
Merck Index 14,6280
Synonym (-)-Mosher's acid; (-)-MTPA
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Products
Catalog Number Mfr. No. Quantity Price Quantity    

AAB2311788

 
alfa aesar™
B23117-88
2.5g Each for $452.88

AAB23117ME

 
alfa aesar™
B23117-ME
500mg Each for $116.61
Description & Specifications

Specifications

Boiling Point 105° to 107°C (1mmHg)
Melting Point 43° to 45°C
Quantity 2.5g
Flash Point >110°C (230°F)
Optical Rotation −72° (c=2 in Methanol)
Chemical Name or Material (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid
CAS 17257-71-5
Assay 99%
Molecular Formula C10H9F3O3
Formula Weight 234.18g/mol
MDL Number MFCD00064200
Beilstein 3591561
Merck Index 14,6280
Synonym (-)-Mosher's acid; (-)-MTPA
Health Hazard 1 Warning
Health Hazard 2 GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.
Health Hazard 3 GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.
Recommended Storage 2° to 8°C

Applications
(S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid is used as a chiral derivatizing agent, it reacts with an alcohol or amine of unknown stereochemistry to form an ester or amide. The absolute configuration of the ester or amide is then determined by proton and/or 19F NMR spectroscopy.

Solubility
Readily soluble in hexane, ether, THF, CH2Cl2, benzene.

Notes
Hygroscopic. Store under inert gas. Store away from oxidizing agents, moisture.

Safety and Handling

Warning

GHS P Statement
P261-P280-P305+P351+P338-P304+P340-P405-P501a
Avoid breathing dust/fume/gas/mist/vapors/spray.
Wear protective gloves/protective clothing/eye protection/face protection.
IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing.
IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing.
Store locked up.
Dispose of contents/container in accordance with local/regional/national/international regulations.

GHS H Statement
H315-H319-H335
Causes skin irritation.
Causes serious eye irritation.
May cause respiratory irritation.

2° to 8°C