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65365

Supelco

(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride

derivatization grade (chiral), LiChropur™, ≥99.0%

Synonym(s):

(S)-(+)-MTPA-Cl, Mosher’s acid chloride

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About This Item

Linear Formula:
C6H5C(OCH3)(CF3)COCl
CAS Number:
20445-33-4
Molecular Weight:
252.62
Beilstein/REAXYS Number:
3591562
MDL number:
MFCD00067105
UNSPSC Code:
23151817
PubChem Substance ID:
329760057
NACRES:
NA.22

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grade

derivatization grade (chiral)

Quality Level

100

assay

≥99.0% (AT)
≥99.0%

optical activity

[α]20/D +132±2°, c = 6% in chloroform

optical purity

enantiomeric ratio: ≥99.5:0.5 (GC)

quality

LiChropur™

technique(s)

HPLC: suitable

refractive index

n20/D 1.469 (lit.)
n20/D 1.469

bp

213-214 °C (lit.)

density

1.35 g/mL at 25 °C (lit.)

shipped in

wet ice

storage temp.

−20°C

SMILES string

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

InChI

1S/C10H8ClF3O2/c1-16-9(8(11)15,10(12,13)14)7-5-3-2-4-6-7/h2-6H,1H3/t9-/m1/s1

InChI key

PAORVUMOXXAMPL-SECBINFHSA-N

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This Item
36967515526865363
(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride derivatization grade (chiral), LiChropur™, ≥99.0%

Supelco

65365

(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride

(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride 99%

Sigma-Aldrich

369675

(S)-(+)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride

(R)-(+)-α-Methoxy-α-trifluoromethylphenylacetic acid 99%

Sigma-Aldrich

155268

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

(R)-(−)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride derivatization grade (chiral), LiChropur™, ≥99.0%

Supelco

65363

(R)-(−)-α-Methoxy-α-(trifluoromethyl)phenylacetyl chloride

assay

≥99.0% (AT)

assay

99%

assay

99%

assay

≥99.0% (AT)

Quality Level

100

Quality Level

200

Quality Level

100

Quality Level

100

storage temp.

−20°C

storage temp.

−20°C

storage temp.

2-8°C

storage temp.

−20°C

density

1.35 g/mL at 25 °C (lit.)

density

1.35 g/mL at 25 °C (lit.)

density

1.344 g/mL at 25 °C (lit.)

density

1.35 g/mL at 25 °C (lit.)

bp

213-214 °C (lit.)

bp

213-214 °C (lit.)

bp

105-107 °C/1 mmHg (lit.)

bp

213-214 °C (lit.)

refractive index

n20/D 1.469 (lit.)

refractive index

n20/D 1.469 (lit.)

refractive index

n20/D 1.473 (lit.)

refractive index

n20/D 1.469, n20/D 1.47 (lit.)

Application

Determination of absolute configuration of stereogenic carbinol carbons; doi:10.1038/nprot.2007.354[1]

Packaging

Bottomless glass bottle. Contents are inside inserted fused cone.

Other Notes

Discover LiChropur reagents ideal for HPLC or LC-MS analysis

Legal Information

LiChropur is a trademark of Merck KGaA, Darmstadt, Germany

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H314

Hazard Classifications

Skin Corr. 1B

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 3

flash_point_f

192.2 °F - closed cup

flash_point_c

89 °C - closed cup

ppe

Faceshields, Gloves, Goggles, type ABEK (EN14387) respirator filter

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Certificates of Analysis (COA)

Lot/Batch Number
BCCL7047
BCCG0230
BCBZ2911
BCBN8548V

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K J Miller et al.
Journal of chromatography, 307(2), 335-342 (1984-05-11)
High-performance liquid chromatography (HPLC) was employed for resolution of enantiomers of chiral ring-substituted 1-phenyl-2- aminopropanes (amphetamines) and 1-phenylethylamine following derivatization with four chiral reagents: (R)-(+)-1-phenylethyl isocyanate ( PEIC ), (-)-alpha-methoxy-alpha-(trifluoromethyl)phenylacetyl chloride ( MTPA X Cl), 2,3,4,6-tetra-O-acetyl-beta-D-glucopyranosyl isothiocyanate ( GITC )
Thomas R Hoye et al.
Nature protocols, 2(10), 2451-2458 (2007-10-20)
This protocol details the most commonly used nuclear magnetic resonance (NMR)-based method for deducing the configuration of otherwise unknown stereogenic, secondary carbinol (alcohol) centers (R1R2CHOH (or the analogous amines where OH is replaced by NH2)). This 'Mosher ester analysis' relies

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