20445-33-4 472VA70UL4 alpha-Methoxy-alpha-(trifluoromethyl)phenylacetyl chloride, (S)-(+)- UNII-472VA70UL4 Mosher's reagent (S)-(+)-form [MI] Benzeneacetyl chloride, alpha-methoxy-alpha-(trifluoromethyl)-, (alphaS)- (+)-(S)-Mtpa-Cl (+)-(alphaS)-alpha-Methoxy-alpha-(trifluoromethyl)benzeneacetyl chloride (+)-Mtpa chloride (+)-Mtpa-Cl (+)-Mosher's chloride Mosher's chloride, (S)-(+)- CAS 20445-33-4

Purity 97%+In StockPharmaceutical Standards
CAS No.20445-33-4
Molecular FormulaC10H14ClF3O2
Molecular Weight258.67 g/mol
CategoryPharmaceutical Standards / API Standards
AvailabilityIn Stock

Chemical Structure

20445-33-4 472VA70UL4 alpha-Methoxy-alpha-(trifluoromethyl)phenylacetyl chloride, (S)-(+)- UNII-472VA70UL4 Mosher's reagent (S)-(+)-form [MI] Benzeneacetyl chloride, alpha-methoxy-alpha-(trifluoromethyl)-, (alphaS)- (+)-(S)-Mtpa-Cl (+)-(alphaS)-alpha-Methoxy-alpha-(trifluoromethyl)benzeneacetyl chloride (+)-Mtpa chloride (+)-Mtpa-Cl (+)-Mosher's chloride Mosher's chloride, (S)-(+)- CAS 20445-33-4 chemical structure

Description

CATO manufactures 20445-33-4 472VA70UL4 alpha-Methoxy-alpha-(trifluoromethyl)phenylacetyl chloride, (S)-(+)- UNII-472VA70UL4 Mosher's reagent (S)-(+)-form [MI] Benzeneacetyl chloride, alpha-methoxy-alpha-(trifluoromethyl)-, (alphaS)- (+)-(S)-Mtpa-Cl (+)-(alphaS)-alpha-Methoxy-alpha-(trifluoromethyl)benzeneacetyl chloride (+)-Mtpa chloride (+)-Mtpa-Cl (+)-Mosher's chloride Mosher's chloride, (S)-(+)- under ISO 17034:2016 accreditation with dual CNAS and ANAB accreditation. Each batch is characterized by orthogonal methods and supplied with a full Certificate of Analysis (COA), ensuring metrological traceability.

CATO supplies 20445-33-4 472VA70UL4 alpha-Methoxy-alpha-(trifluoromethyl)phenylacetyl chloride, (S)-(+)- UNII-472VA70UL4 Mosher's reagent (S)-(+)-form [MI] Benzeneacetyl chloride, alpha-methoxy-alpha-(trifluoromethyl)-, (alphaS)- (+)-(S)-Mtpa-Cl (+)-(alphaS)-alpha-Methoxy-alpha-(trifluoromethyl)benzeneacetyl chloride (+)-Mtpa chloride (+)-Mtpa-Cl (+)-Mosher's chloride Mosher's chloride, (S)-(+)- (CAS 20445-33-4), a certified reference material (molecular formula C10H14ClF3O2, MW 258.67 g/mol) for analytical method development and quality control.

20445-33-4 472VA70UL4 alpha-Methoxy-alpha-(trifluoromethyl)phenylacetyl chloride, (S)-(+)- UNII-472VA70UL4 Mosher's reagent (S)-(+)-form [MI] Benzeneacetyl chloride, alpha-methoxy-alpha-(trifluoromethyl)-, (alphaS)- (+)-(S)-Mtpa-Cl (+)-(alphaS)-alpha-Methoxy-alpha-(trifluoromethyl)benzeneacetyl chloride (+)-Mtpa chloride (+)-Mtpa-Cl (+)-Mosher's chloride Mosher's chloride, (S)-(+)- (C10H14ClF3O2) contains a carboxylic acid group, a hydroxyl group, an ether linkage, fluorine/chlorine substitution. Halogen substitution raises its density and boiling point, its high carbon-to-hydrogen ratio confers good lipid solubility, the carboxyl group imparts weak acidity; these physicochemical properties determine the optimal preparation and storage of its standard solutions. Halogen substitution (F/Cl/Br/I) produces a distinctive isotope pattern in mass spectrometry, a valuable aid for qualitative confirmation.

This reference standard is suitable for quantitative analysis on major chromatographic platforms including HPLC, GC, LC-MS/MS, and GC-MS, serving as an external calibration standard or a system suitability test reference material.

Physical & Chemical Properties

Molecular FormulaC10H14ClF3O2
Molecular Weight258.67 g/mol
Purity97%+
StorageStore at room temperature, keep tightly closed to prevent evaporation
Solubility (reference)Soluble in chloroform, dichloromethane, ethyl acetate, DMSO
StabilityContains ester bond; hydrolyzes under strong alkaline conditions
Degree of Unsaturation (DBE)2.0
CAS Registry Year (est.)1962
Halogen ContentF/Cl-containing

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