Molecular Structure:

Molecular Formula: C₄H₇NOS
Molecular Weight: 117.1695
IUPAC Name: (4R)-4-Sulfanylpyrrolidin-2-one
Synonyms of (R)-4-Mercapto-2-pyrrolidone (CAS NO.157429-42-0): 2-Pyrrolidinone, 4-mercapto-, (R) ; 2-Pyrrolidinone,4-mercapto-,(4R)-(9CI) ; 2-Pyrrolidinone, 4-mercapto-, (4R) ; (4R)- 4-Mercaptopyrrolidin-2-one
CAS NO: 157429-42-0
Product Categories: THIOL ; Pyrrolidinone derivatives ; Drug Intermediates 
Index of Refraction: 1.541
Molar Refractivity: 30.117 cm³
Molar Volume: 95.819 cm³
Surface Tension: 42.688 dyne/cm
Density: 1.223 g/cm³
Flash Point: 150.322 °C
Enthalpy of Vaporization: 56.702 kJ/mol
Boiling Point of (R)-4-Mercapto-2-pyrrolidone (CAS NO.157429-42-0): 324.946 °C at 760 mmHg