Molecular structure of (S)-2-Acetamido-3-(4-chlorophenyl)propanoic acid (CAS NO.55478-55-2) is:

Product Name: (S)-2-Acetamido-3-(4-chlorophenyl)propanoic acid
CAS Registry Number: 55478-55-2
Systematic Name: N-acetyl-4-chloro-L-phenylalanine
Molecular Formula: C₁₁H₁₂ClNO₃
Molecular Weight: 241.67
Index of Refraction: 1.56 
Molar Refractivity: 59.743 cm³ 
Molar Volume: 184.66 cm³
Surface Tension: 50.105 dyne/cm 
Density: 1.309 g/cm³ 
Flash Point: 244.172 °C 
Enthalpy of Vaporization: 78.43 kJ/mol 
Boiling Point: 480.127 °C at 760 mmHg 
Vapour Pressure: 0 mmHg at 25 °C 
Product Categories: API intermediates
SMILES: Clc1ccc(cc1)C[C@@H](C(=O)O)NC(=O)C
InChI: InChI=1/C11H12ClNO3/c1-7(14)13-10(11(15)16)6-8-2-4-9(12)5-3-8/h2-5,10H,6H2,1H3,(H,13,14)(H,15,16)/t10-/m0/s1 
InChIKey: HLORMWAKCPDIPU-JTQLQIEIBX 
Std. InChI: InChI=1S/C11H12ClNO3/c1-7(14)13-10(11(15)16)6-8-2-4-9(12)5-3-8/h2-5,10H,6H2,1H3,(H,13,14)(H,15,16)/t10-/m0/s1
Std. InChIKey: HLORMWAKCPDIPU-JTQLQIEISA-N

 (S)-2-Acetamido-3-(4-chlorophenyl)propanoic acid , its cas register number is 55478-55-2. It also can be called L-Phenylalanine,N-acetyl-4-chloro- ; N-Acetyl-4-chloro-L-phenylalanine .