Buy (R)-O-Acetylmandelic Acid

Name: (R)-(−)-O-Acetylmandelic Acid
Brand: Sarchem Labs
SKU: S2957

Chemical structure of (R)-(−)-O-Acetylmandelic acid | 51019-43-3

CAS: 51019-43-3

SKU: S2957

(R)-(−)-O-Acetylmandelic acid | SKU: S2957

Synonyms: (−)-O-Acetyl-D-mandelic acid; (R)-(−)-α-Acetoxyphenylacetic acid

(R)-(−)-O-Acetylmandelic Acid is a chiral derivatizing agent that Sarchem Labs supplies as a white crystalline powder for analytical-chemistry and pharmaceutical research applications. Every lot ships with a Certificate of Analysis and Safety Data Sheet.

Request Quote — S2957

Specifications

Melting Point	97–99°C
Color	White
Linear Formula	CH3CO2CH(C6H5)CO2H
Formula Weight	194.19
Physical Form	White crystalline powder
Chemical Name or Material	(-)-O-Acetyl-D-mandelic Acid
Molecular Weight	194.18 g/mol
Assay	99%
CAS Number	51019-43-3
NACRES	NA.22
PubChem Substance ID	24855256
UNSPSC Code	12352108
MDL Number	MFCD00004249
Beilstein/REAXYS Number	2694110
Optical Activity	[α]20/D −152.4° (c=2 in acetone)
Optical Purity	ee: 98% (GLC)
Applications	Chiral derivatizing agent for NMR determination of enantiomeric purity (α-deuterated carboxylic acids, alcohols, amines)

Applications

Chiral derivatizing agent for NMR determination of enantiomeric purity (α-deuterated carboxylic acids, alcohols, amines)

Pharmaceutical intermediate synthesis (precursor to chiral diamines and related building blocks)

Product Description

What is (R)-(−)-O-Acetylmandelic Acid?

This compound is a single-enantiomer chiral acid used as an NMR derivatizing agent — reacting with a target compound to form diastereomeric derivatives whose NMR signals become distinguishable, which is how researchers measure enantiomeric excess.

Uses of (R)-(−)-O-Acetylmandelic Acid

This reagent is used in analytical laboratories to determine the enantiomeric purity of chiral alcohols and amines by NMR, and as a precursor in pharmaceutical research toward chiral diamine intermediates.