Molecular Structure of D-Arginine (CAS NO.157-06-2):

Empirical Formula: C₆H₁₄N₄O₂
Molecular Weight: 174.201
IUPAC Name: 2-amino-5-(diaminomethylideneamino)pentanoic acid 
H bond acceptors: 6
H bond donors: 7
Freely Rotating Bonds: 6
Polar Surface Area: 48.38 Å²
Index of Refraction: 1.601
Molar Refractivity: 40.69 cm³
Molar Volume: 118.7 cm³
Surface Tension: 66.1 dyne/cm
Density: 1.46 g/cm³
Flash Point: 201.2 °C
Enthalpy of Vaporization: 72.55 kJ/mol
Boiling Point: 409.1 °C at 760 mmHg
Vapour Pressure: 7.7E-08 mmHg at 25°C
EINECS: 205-866-5
Melting point: 226 °C (dec.)(lit.)
Storage temp.: Store at 0-5
Water Solubility: Soluble
Sensitive: Air Sensitive
Appearance: white to light yellow crystal powder
Product Categories: Amino Acids Derivatives; chiral; Protected amino acid & peptides; Arginine [Arg, R]; Amino Acids and Derivatives; alpha-Amino Acids; Amino Acids; Biochemistry; for Resolution of Acids; Optical Resolution; Synthetic Organic Chemistry; Amino Acids

The Hazard Codes: Xi,Xn
The Risk Statements information of D-Arginine (CAS NO.157-06-2):
36: Irritating to the eyes
20/21/22: Harmful by inhalation, in contact with skin and if swallowed
36/37/38: Irritating to eyes, respiratory system and skin
The Safety Statements information:
26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
36: Wear suitable protective clothing
WGK Germany: 3
RTECS: CF1934220
F: 9

  D-Arginine , with CAS number of 157-06-2, can be called R-(-)-arginine ; (r)-2-amino-5-guanidinopentanoic acid ; arginine, d- ; h-d-arg-oh ; d-arg ; d-(-)-arginine ; d-arginine . It is a white to light yellow crystal powde. D-Arginine (CAS NO.157-06-2) is used for biochemical research.