Description General description (S)-(+)-α-Methoxy-α-trifluoromethylphenylacetyl chloride 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. Packaging 50, 250 mg in glass bottle Application Used in the synthesis of natural products and pheromones. Packaging Bottomless glass bottle. Contents are inside inserted fused cone. Other Notes doi:10.1038/nprot.2007.354