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

Description

CAS: 17257-71-5 | C10H8F3O3 | 233.17 g/mol

(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.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

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.

Specifications

Chemical Identifiers

• CAS: 17257-71-5
• Molecular Formula: C10H8F3O3
• Molecular Weight (g/mol): 233.17
• MDL Number: MFCD00064200
• InChI Key: JJYKJUXBWFATTE-VIFPVBQESA-M
• Synonym: s---alpha-methoxy-alpha-trifluoromethyl phenylacetic acid, s-3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid, --mosher's acid, --mtpa, unii-172hcj1iqv, 172hcj1iqv, 2s-3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid, --alpha-methoxy-alpha-trifluoromethyl phenylacetic acid, s---mtpa, --a-methoxy-a-trifluoromethylphenylacetic acid
• PubChem CID: 6992788
• IUPAC Name: (2S)-3,3,3-trifluoro-2-methoxy-2-phenylpropanoic acid
• SMILES: CO[C@](C([O-])=O)(C1=CC=CC=C1)C(F)(F)F

• Melting Point: 43°C to 45°C
• Density: 1.344
• Boiling Point: 105°C to 107°C (1 mmHg)
• Flash Point: >110°C (230°F)
• Quantity: 500 mg
• Beilstein: 3591561
• Sensitivity: Hygroscopic
• Merck Index: 14,6280
• Solubility Information: Readily soluble in hexane,ether,THF,CH2Cl2,benzene.
• Optical Rotation: −72° (c=2 in Methanol)
• Formula Weight: 234.18
• Percent Purity: 99%
• Chemical Name or Material: (S)-(-)-alpha-Methoxy-alpha-(trifluoromethyl)phenylacetic acid

Safety and Handling

Hazard Category	H315-H319-H335
Hazard Statement	GHS H Statement H315-H319-H335 Causes skin irritation. Causes serious eye irritation. May cause respiratory irritation.
Precautionary Statement	P261-P264b-P271-P280-P302+P352-P304+P340-P305+P351+P338-P312-P332+P313-P362-P501c
EINECSNumber	241-292-1
TSCA	No
Recommended Storage	Keep cold

SDS

RUO – Research Use Only