(R)-(+)-α-Methoxy-α-trifluoromethylphenylacetic acid

ALDRICH/155268 - 99%

Synonym: (+)-MTPA; Mosher’s acid

CAS Number: 20445-31-2
Empirical Formula (Hill Notation): C₁₀H₉F₃O₃
Molecular Weight: 234.17
EC Number: 243-829-5
MDL Number: MFCD00004184
Linear Formula: C₆H₅C(OCH₃)(CF₃)CO₂H
Product Type: Chemical

Catalog Number	PKG Qty.	Price	Quantity


45-155268-250MG	250 mg	$87.70 1/EA		Add To Favorites
45-155268-1G	1 g	$292.00 1/EA		Add To Favorites
45-155268-5G	5 g	$1330.00 1/EA		Add To Favorites

Properties
Descriptions
Safety Info.
Basic Data

assay	99%
bp	105-107 °C/1 mmHg (lit.)
density	1.344 g/mL at 25 °C (lit.)
form	solid
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-/m1/s1
InChI key	JJYKJUXBWFATTE-SECBINFHSA-N
mp	46-49 °C (lit.)
optical activity	[α]20/D +72°, c = 1.6 in methanol
optical purity	ee: 99% (GLC)
Quality Level	100
refractive index	n20/D 1.473 (lit.)
SMILES string	CO[C@@](C(O)=O)(c1ccccc1)C(F)(F)F
storage temp.	2-8°C

Application:	(R)-(+)-α-Methoxy-α-trifluoromethylphenylacetic acid is commonly used as a derivatizing agent in Mosher ester analysis, an NMR-based method for determining the absolute configuration of the chiral carbon center in a secondary alcohol.
Other Notes:	doi:10.1038/nprot.2007.354
Packaging:	1, 5 g in glass bottle
Packaging:	250 mg in glass bottle
Packaging:	Bottomless glass bottle. Contents are inside inserted fused cone.

Symbol	GHS07
Signal word	Warning
Hazard statements	H315 - H319 - H335
Precautionary statements	P302 + P352 - P305 + P351 + P338
Hazard Codes	Xi
Risk Statements	36/37/38
Safety Statements	26-36
RIDADR	NONH for all modes of transport
WGK Germany	WGK 3
Flash Point(F)	235.4 °F - closed cup
Flash Point(C)	113 °C - closed cup

Purity	99%
bp	105-107 °C/1 mmHg (lit.)
mp	46-49 °C (lit.)
Density	1.344 g/mL at 25 °C (lit.)
Refractive Index	n20/D 1.473 (lit.)
Storage Temp.	2-8°C
UNSPSC	12352112

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