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Merck
모든 사진(1)

주요 문서

318035

Sigma-Aldrich

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

≥99%

동의어(들):

(−)-MTPA, Mosher’s acid

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About This Item

Linear Formula:
C6H5C(OCH3)(CF3)CO2H
CAS Number:
Molecular Weight:
234.17
Beilstein:
4684048
EC Number:
MDL number:
UNSPSC 코드:
12352112
PubChem Substance ID:
NACRES:
NA.22

Quality Level

분석

≥99%

광학 활성

[α]18/D −72°, c = 1.6 in methanol

광학 순도

ee: 99% (GLC)

refractive index

n20/D 1.474 (lit.)

bp

95-97 °C/0.05 mmHg (lit.)

mp

46-49 °C (lit.)

density

1.303 g/mL at 25 °C (lit.)

작용기

carboxylic acid
ether
fluoro
phenyl

저장 온도

2-8°C

SMILES string

CO[C@](C(O)=O)(c1ccccc1)C(F)(F)F

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

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일반 설명

(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.

포장

Bottomless glass bottle. Contents are inside inserted fused cone.

기타 정보

doi:10.1038/nprot.2007.354

픽토그램

Exclamation mark

신호어

Warning

유해 및 위험 성명서

Hazard Classifications

Eye Irrit. 2 - Skin Irrit. 2 - STOT SE 3

표적 기관

Respiratory system

Storage Class Code

11 - Combustible Solids

WGK

WGK 3

Flash Point (°F)

235.4 °F - closed cup

Flash Point (°C)

113 °C - closed cup

개인 보호 장비

dust mask type N95 (US), Eyeshields, Gloves


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시험 성적서(COA)

Lot/Batch Number

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문서 라이브러리 방문

Mosher ester analysis for the determination of absolute configuration of stereogenic (chiral) carbinol carbons.
Hoye TR, et al.
Nature Protocols, 2(10), 2451-2458 (2007)
J Martín Torres-Valencia et al.
Phytochemical analysis : PCA, 13(6), 329-332 (2002-12-24)
A method to determine the absolute configuration of 2,3-epoxy-2-methylbutanoate ester residues in natural products is presented, based on (i) the reduction of the ester function to yield a 2-methyl-1,2-butanediol, (ii) esterification of the obtained primary alcohol with either (R)-(+)- or
Giancarlo Cravotto et al.
Chirality, 16(8), 526-533 (2004-08-04)
Cyclodextrin (CD) derivatives are important selectors for analytical chiral recognition. Their enantioselectivities and chemical properties depend on ring size and on nature, number and location of substituents. This paper describes the synthesis of 6-O-TBDMS-2,3-O-methyl beta-cyclodextrins bearing in position 2 either
[Three dimensional structure analysis of organic chemical compounds from natural sources using NMR spectral analysis].
Osamu Shirota et al.
Kokuritsu Iyakuhin Shokuhin Eisei Kenkyujo hokoku = Bulletin of National Institute of Health Sciences, (121)(121), 87-88 (2004-02-24)
Bin Sui et al.
The Journal of organic chemistry, 75(9), 2942-2954 (2010-04-17)
Two different mixture synthesis routes have been used to make the four stereoisomers of petrocortyne A. A first quick and dirty route provided a mixture of the four isomers in nonselective fashion. Mosher and 2-naphthylmethoxyacetic acid (NMA) ester methods were

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