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(S)-(−)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid

ALDRICH/318035 - ≥99%

Synonym: (−)-MTPA; Mosher’s acid

CAS Number: 17257-71-5
Empirical Formula (Hill Notation): C10H9F3O3
Molecular Weight: 234.17
EC Number: 241-292-1
MDL Number: MFCD00064200
Linear Formula: C6H5C(OCH3)(CF3)CO2H
Product Type: Chemical
Catalog Number PKG Qty. Price Quantity
45-318035-250MG 250 mg
 $82.60
1/EA		 Add To Favorites
45-318035-1G 1 g
 $175.00
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assay ≥99%
bp 95-97 °C/0.05 mmHg (lit.)
density 1.303 g/mL at 25 °C (lit.)
InChI 1S/C10H9F3O3/c1-16-9(8(14)15,10(11,12)13)7-5-3-2-4-6-7/h2-6H,1H3,(H,14,15)/t9-/m0/s1
InChI key JJYKJUXBWFATTE-VIFPVBQESA-N
mp 46-49 °C (lit.)
optical activity [α]18/D −72°, c = 1.6 in methanol
optical purity ee: 99% (GLC)
refractive index n20/D 1.474 (lit.)
SMILES string CO[C@](C(O)=O)(c1ccccc1)C(F)(F)F
storage temp. 2-8°C
General description: (S)-(-)-α-Methoxy-α-(trifluoromethyl)phenylacetic acid is commonly used as a derivatizing agent in Mosher ester analysis and Mosher amide analysis, which are NMR-based methods for determining the absolute configuration of the chiral carbon center in secondary alcohols and amines, respectively.
Other Notes: doi:10.1038/nprot.2007.354
Packaging: 1 g in glass bottle
Packaging: 250 mg in glass bottle
Packaging: Bottomless glass bottle. Contents are inside inserted fused cone.
Purity ≥99%
bp 95-97 °C/0.05 mmHg (lit.)
mp 46-49 °C (lit.)
Density 1.303 g/mL at 25 °C (lit.)
Refractive Index n20/D 1.474 (lit.)
Storage Temp. 2-8°C
UNSPSC 12352112

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