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Sigma-Aldrich

(R)-(−)-Mandelic acid

ReagentPlus®, ≥99%

Synonym(s):

(R)-α-Hydroxyphenylacetic acid

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About This Item

Linear Formula:
C6H5CH(OH)CO2H
CAS Number:
611-71-2
Molecular Weight:
152.15
Beilstein/REAXYS Number:
2691094
EC Number:
210-276-6
MDL number:
MFCD00064251
UNSPSC Code:
12352106
PubChem Substance ID:
24849414
NACRES:
NA.22

Quality Level

100

product line

ReagentPlus®

assay

≥99%

form

solid

optical activity

[α]23/D −153°, c = 2.5 in H2O

mp

131-133 °C (lit.)

SMILES string

O[C@@H](C(O)=O)c1ccccc1

InChI

1S/C8H8O3/c9-7(8(10)11)6-4-2-1-3-5-6/h1-5,7,9H,(H,10,11)/t7-/m1/s1

InChI key

IWYDHOAUDWTVEP-SSDOTTSWSA-N

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General description

(R)-(-)-Mandelic acid, a chiral resolving agent, is also used as a building block to synthesize pharmaceutical drugs such as penicillin and cephalosporin. It can be synthesized from (R,S)-mandelonitrile with high yield and enantioselectivity using nitrilase enzyme .

(R)-(−)-Mandelic acid is a carboxylic acid used as a starting material to synthesize antibiotics, antitumor agents, and antiobesity drugs.

Application

(R)-(-)-Mandelic acid has been used in studies to assess its ability to undergo spontaneous oscillatory chiral conversion and spontaneous condensation to form polymandelic acid.

Legal Information

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

pictograms

Corrosion
GHS05

signalword

Danger

hcodes

H318

Hazard Classifications

Eye Dam. 1

wgk_germany

WGK 1

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Gloves, type N95 (US)

Certificates of Analysis (COA)

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Enzyme-catalysed optical resolution of mandelic acid via RS (?)-methyl mandelate in non-aqueous media.
Yadav GD and Sivakumar P.
Biochemical Engineering Journal, 19(2), 101-107 (2004)
TLC in a search for structural limitations of spontaneous oscillatory in-vitro chiral conversion. a-hydroxybutyric and mandelic acids.
Sajewicz M, et al.
J. Planar Chromatogr., 22(4), 241-248 (2009)
Production of R-(-)-mandelic acid from mandelonitrile by Alcaligenes faecalis ATCC 8750.
Yamamoto K, et al.
Applied and Environmental Microbiology, 57(10), 3028-3032 (1991)
On the spontaneous condensation of selected hydroxy acids.
Sajewicz M, et al.
Acta Chromatographica , 21(2), 259-271 (2009)
Ya-Ping Xue et al.
Journal of industrial microbiology & biotechnology, 38(2), 337-345 (2010-07-20)
(R)-(-)-Mandelic acid (R-MA) is an important intermediate with broad uses. Recently, R-MA production using nitrilase has been gaining more and more attention due to its higher productivity and enantioselectivity. In this work, a new bacterium WT10, which exhibited favorable nitrilase
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