Empirical Formula: C₇H₉NO₂S
Molecular Weight: 171.2169g/mol
Structure of 3-Thiophenepropanoicacid, a-amino-, (aS)- (CAS NO.3685-51-6):

Index of Refraction: 1.607
Molar Refractivity: 43.87 cm³
Molar Volume: 126.9 cm³
Polarizability: 17.39×10^-24cm³
Surface Tension: 61.2 dyne/cm
Density: 1.349 g/cm³
Flash Point: 147.5 °C
Enthalpy of Vaporization: 59.33 kJ/mol
Boiling Point: 320.3 °C at 760 mmHg
Vapour Pressure: 0.000133 mmHg at 25°C 
Product Categories: Amino Acids;Phenylalanine analogs and other aromatic alpha amino acids;Amino Acid Derivatives;a-amino 
Systematic Name: 3-thiophen-3-yl-L-alanine
SMILES: O=C(O)[C@@H](N)Cc1ccsc1
InChI: InChI=1/C7H9NO2S/c8-6(7(9)10)3-5-1-2-11-4-5/h1-2,4,6H,3,8H2,(H,9,10)/t6-/m0/s1
InChIKey: VOIZSAUUYAGTMS-LURJTMIEBR

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing.

  3-Thiophenepropanoicacid, a-amino-, (aS)- , its cas register number is 3685-51-6. It also can be called (2S)-2-Amino-3-(3-thienyl)propanoic acid ; 3-Thiophen-3-yl-L-alanin ; Alanine, 3-(3-thienyl)-, DL- and so on. 3-Thiophenepropanoicacid, a-amino-, (aS)- (CAS NO.3685-51-6) is irritating to eyes, respiratory system and skin.