Molecular Structure of 2-Ethylbenzenethiol (CAS NO.4500-58-7):

IUPAC Name: 2-ethylbenzenethiol 
Empirical Formula: C₈H₁₀S
Molecular Weight: 138.23
H bond acceptors: 0
H bond donors: 0
Freely Rotating Bonds: 2
Polar Surface Area: 25.3 Å²
Index of Refraction: 1.565
Molar Refractivity: 43.97 cm³
Molar Volume: 134.8 cm³
Surface Tension: 36.8 dyne/cm
Density: 1.024 g/cm³
Flash Point: 80.6 °C
Enthalpy of Vaporization: 42.87 kJ/mol
Boiling Point: 210.7 °C at 760 mmHg
Vapour Pressure: 0.275 mmHg at 25°C
Sensitive: Air Sensitive
BRN: 2553288
SMILES: Sc1ccccc1CC
InChI: InChI=1/C8H10S/c1-2-7-5-3-4-6-8(7)9/h3-6,9H,2H2,1H3
EINECS: 224-811-6
Product Categories: Phenol&Thiophenol&Mercaptan; Phenoles and thiophenoles; thiol Flavor

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-36-37/39
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S36:Wear suitable protective clothing. 
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: 2810
WGK Germany: 3
TSCA: T
HazardClass: 6.1
PackingGroup: III

  2-Ethylbenzenethiol , with CAS number of 4500-58-7, can be called 2-Ethylphenylmercaptan ; Benzenethiol, O-ethyl- ; benzenethiol, 2-ethyl- . It is a clear light yellow liquid