Molecule structure of N-Acetyl-S-(2-hydroxyphenylethyl)-L-cysteine (CAS NO.152155-79-8):

IUPAC Name: (2R)-2-Acetamido-3-[2-(2-hydroxyphenyl)ethylsulfanyl]propanoic acid 
Molecular Weight: 283.34338 g/mol
Molecular Formula: C₁₃H₁₇NO₄S 
Density: 1.299 g/cm³ 
Boiling Point: 582.9 °C at 760 mmHg 
Flash Point: 306.3 °C
Index of Refraction: 1.593
Molar Refractivity: 73.99 cm³
Molar Volume: 218.1 cm³
Polarizability: 29.33×10^-24 cm³
Surface Tension: 57.5 dyne/cm 
Enthalpy of Vaporization: 91.65 kJ/mol
Vapour Pressure: 1.97E-14 mmHg at 25 °C
XLogP3-AA: 1.4
H-Bond Donor: 3
H-Bond Acceptor: 4
Rotatable Bond Count: 7
Tautomer Count: 6
Exact Mass: 283.087829
MonoIsotopic Mass: 283.087829
Topological Polar Surface Area: 86.6
Heavy Atom Count: 19
Complexity: 311
Defined Atom StereoCenter Count: 1
Canonical SMILES: CC(=O)NC(CSCCC1=CC=CC=C1O)C(=O)O
Isomeric SMILES: CC(=O)N[C@@H](CSCCC1=CC=CC=C1O)C(=O)O
InChI: InChI=1S/C13H17NO4S/c1-9(15)14-11(13(17)18)8-19-7-6-10-4-2-3-5-12(10)16/h2-5,11,16H,6-8H2,1H3,(H,14,15)(H,17,18)/t11-/m0/s1
InChIKey: VNJQKYBUNWVPHD-NSHDSACASA-N

Mutation data reported. When heated to decomposition it emits toxic vapors of NO_x and SO_x.

 N-Acetyl-S-(2-hydroxyphenylethyl)-L-cysteine (CAS NO.152155-79-8) is also named as L-Cysteine, N-acetyl-S-(2-hydroxyphenylethyl)- . N-Acetyl-S-(2-hydroxyphenylethyl)-L-cysteine (CAS NO.152155-79-8) is highly toxic. It is flammable. It will produce toxic nitrogen oxide and sulfur oxide fumes by heat. So the storage environment should be ventilate, low-temperature and dry.