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HomeProduct name listD-2-Phenylglycine

D-2-Phenylglycine

Synonym(s):(R)-(−)-2-Phenylglycine;D-2-Phenylglycine;R-(−)-α-Aminophenylacetic acid

  • CAS NO.:875-74-1
  • Empirical Formula: C8H9NO2
  • Molecular Weight: 151.16
  • MDL number: MFCD00008061
  • EINECS: 212-876-3
  • SAFETY DATA SHEET (SDS)
  • Update Date: 2025-10-24 10:37:01
D-2-Phenylglycine Structural

What is D-2-Phenylglycine?

Description

d-Phenylglycine is widely used in large quantity as the side chain that makes ampicillin and cephalexin orally acceptable.

Chemical properties

White crystalline powder

The Uses of D-2-Phenylglycine

D-(-)-2-Phenylglycine is the derivative of glycine (G615990), a non-essential amino acid for human development. Glycine is an inhibitory neurotransmitter in spinal cord, allosteric regulator of NMDA r eceptors.

The Uses of D-2-Phenylglycine

D-(-)-2-Phenylglycine (Cefalexin EP Impurity A) is the derivative of glycine (G615990), a non-essential amino acid for human development. Glycine is an inhibitory neurotransmitter in spinal cord, allosteric regulator of NMDA receptors.

Definition

ChEBI: The R stereoisomer of alpha-phenylglycine.

Flammability and Explosibility

Non flammable

Synthesis

Industrially, dphenylglycine has been produced by a conventional resolution method or by kinetic resolution with acylase. Another enzymatic procedure has been developed by Yamada et al. , as shown below.
Synthesis_875-74-1

Properties of D-2-Phenylglycine

Melting point: 302 °C (dec.)(lit.)
Boiling point: 273.17°C (rough estimate)
alpha  -156 º (c=1,1N HCl)
Density  1.2 g/cm3 (20℃)
vapor pressure  0Pa at 25℃
refractive index  -158 ° (C=1, 1mol/L HCl)
Flash point: 150 °C
storage temp.  Keep in dark place,Inert atmosphere,Room temperature
solubility  Aqueous Acid (Sparingly), Water (Slightly, Heated)
form  Crystalline Powder
pka 1.94±0.10(Predicted)
color  White
optical activity [α]20/D 155°, c = 1 in 1 M HCl
Water Solubility  0.3g/100mL
Merck  14,7291
BRN  2208676
CAS DataBase Reference 875-74-1(CAS DataBase Reference)
NIST Chemistry Reference d a-Phenylglycine(875-74-1)
EPA Substance Registry System Benzeneacetic acid, .alpha.-amino-, (.alpha.R)- (875-74-1)

Safety information for D-2-Phenylglycine

Computed Descriptors for D-2-Phenylglycine

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