DL-4-Chlorophenylalanine

The molecular structure of Phenylalanine,4-chloro-  (CAS NO.1991-78-2) is

IUPAC Name: 2-Azaniumyl-3-(4-chlorophenyl)propanoate 
Canonical SMILES: C1=CC(=CC=C1CC(C(=O)[O-])[NH3+])Cl
Molecular Formula: C₉H₁₀ClNO₂
Molecular Weight: 199.65
EINECS: 231-051-9
Density: 1.336g/cm³
Boiling Point: 339.5°C at 760mmHg
Flash Point: 159.1°C
Freely Rotating Bonds: 4
Polar Surface Area: 29.54 Å²
Index of Refraction: 1.589
Molar Refractivity: 50.38 cm³
Molar Volume: 149.3 cm³
Polarizability: 19.97 ×10^-24 cm³
Surface Tension: 55.4 dyne/cm
Enthalpy of Vaporization: 61.53 kJ/mol
Vapour Pressure: 3.54E-05 mmHg at 25°C 
Solubility: slightly soluble in water
Properties: crystalline 
Classification Codes: Enzyme inhibitors ; Neurotransmitter Agents  ; Reproductive Effect ; Serotonin Agents ; Serotonin antagonists ; Serotonin inhibitor
The Cas Register Number  of Phenylalanine,4-chloro- is 1991-78-2. The chemical synonyms of Phenylalanine,4-chloro- (CAS NO.1991-78-2) are 2-Amino-3-(4-chlorophenyl)propionic acid ; 4-Chloro-dl-phenylalanine ; 4-Chlorophenylalanine ; DL-4-Chlorophenylalanine ; DL-P-Chlorophenylalanine ; H-P-Chloro-DL-PHE-OH .

 Phenylalanine,4-chloro- (CAS NO.1991-78-2) is used as pharmaceutical intermediate and a selective and irreversible inhibitor of tryptophan hydroxylase.

An experimental teratogen. Experimental reproductive effects. When heated to decomposition it emits toxic fumes of Cl⁻ and NO_x.
Hazard Codes:T
Risk Statements: 25-43 
R25: Toxic if swallowed. 
R43: May cause sensitization by skin contact.
Safety Statements: 36/37-45 
S36/37: Wear suitable protective clothing and gloves. 
S45: In case of accident or if you feel unwell, seek medical advice immediately (show the label whenever possible.)
RIDADR: UN 2811 6.1/PG 3
WGK Germany: 3
RTECS: AY4390010