2,3,6-TRICHLOROQUINOXALINE

IUPAC Name: 2,3,6-Trichloroquinoxaline
Synonyms of 2,3,6-Trichloroquinoxaline (CAS NO.2958-87-4): 2,3,6-Trichloroquinoxaline
CAS NO: 2958-87-4
Molecular Formula: C₈H₃Cl₃N₂
Molecular Weight : 233.4818
Molecular Structure:
EINECS: 220-987-3
H bond acceptors: 2
H bond donors: 0
Freely Rotating Bonds: 0
Polar Surface Area: 25.78 Å²
Index of Refraction: 1.677
Molar Refractivity: 54.96 cm³
Molar Volume: 145.8 cm³
Surface Tension: 60.6 dyne/cm
Density: 1.6 g/cm³
Flash Point: 160 °C
Enthalpy of Vaporization: 51.3 kJ/mol
Boiling Point: 294.7 °C at 760 mmHg
Vapour Pressure: 0.00281 mmHg at 25°C
Melting Point: 143-148 °C
Appearance: 2,3,6-Trichloroquinoxaline (CAS NO.2958-87-4) is brown granular powder.

Reported in EPA TSCA Inventory.

Hazard Codes: Xi
Risk Statements: 36/37/38
R36/37/38: 2,3,6-Trichloroquinoxaline (CAS NO.2958-87-4) is irritating to eyes, respiratory system and skin.
Safety Statements: 37/39-26
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.

A poison by intravenous route. When heated to decomposition it emits toxic vapors of NO_x and Cl⁻.

General Information: As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear. During a fire, irritating and highly toxic gases may be generated by thermal decomposition or combustion.
Extinguishing Media: In case of fire, use water, dry chemical, chemical foam, or alcohol-resistant foam. 
Handling: Wash thoroughly after handling. Remove contaminated clothing and wash before reuse. Avoid contact with eyes, skin, and clothing. Avoid ingestion and inhalation.
Storage: Store in a cool, dry place. Keep container closed when not in use.