IUPAC Name: 2,5-Dichlorobenzenethiol
Canonical SMILES: C1=CC(=C(C=C1Cl)S)Cl
InChI: InChI=1S/C6H4Cl2S/c7-4-1-2-5(8)6(9)3-4/h1-3,9H
InChIKey: QIULLHZMZMGGFH-UHFFFAOYSA-N
Molecular Weight: 179.06696 [g/mol]
Molecular Formula: C₆H₄Cl₂S
XLogP3: 3.5 
EINECS: 227-486-9 
Sensitive: Stench 
Appearance: clear colorless to yellow liquid after melting
Melting Point: 22-25 °C
Index of Refraction: 1.619
Molar Refractivity: 44.21 cm³
Molar Volume: 125.9 cm³
Surface Tension: 45.7 dyne/cm
Density: 1.421 g/cm³
Flash Point: 96.4 °C
Enthalpy of Vaporization: 42.06 kJ/mol
Boiling Point: 202.3 °C at 760 mmHg
Vapour Pressure: 0.419 mmHg at 25 °C
Product Categories of Benzenethiol,2,5-dichloro- (CAS NO.5858-18-4): Phenol & Thiophenol&Mercaptan; Phenoles and thiophenoles; Organic Building Blocks; Sulfur Compounds; Thiols / Mercaptans

Hazard Codes: Xi
Risk Statements: 36/37/38 
R36/37/38:Irritating to eyes, respiratory system and skin.
Safety Statements: 26-37/39 
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. 
S37/39:Wear suitable gloves and eye/face protection.
RIDADR: UN 2810 6.1/PG 3
WGK Germany: 3
Hazard Note: Harmful/Stench
HazardClass: IRRITANT, STENCH
PackingGroup of Benzenethiol,2,5-dichloro- (CAS NO.5858-18-4): III

 Benzenethiol,2,5-dichloro- (CAS NO.5858-18-4), its Synonyms are 2,5-Dichlorobenzenethiol ; 2,5-Dichlorothiophenol ; Thiophenol, 2,5-dichloro- .