The 3-Chlorophenyl isocyanate(2909-38-8) is used as the herbicide chlorpropham intermediates.

Reported in EPA TSCA Inventory.

Poison by inhalation and ingestion. A flammable liquid when exposed to heat or flame. When heated to decomposition it emits toxic fumes of Cl⁻, CN⁻, and NO_x. See also ESTERS and THIOCYANATES.
Safety information of 3-Chlorophenyl isocyanate(2909-38-8):
Hazard Codes: T+
Risk Statements: 26-35-37-42-36/37/38
R26: Very Toxic by inhalation
R35: Causes severe burns
R37: Irritating to the respiratory system
R42: May cause sensitization by inhalation
R36/37/38: Irritating to eyes, respiratory system and skin 
Safety Statements: 23-26-28-36/37/39-45-38-22
S23: Do not breathe gas/fumes/vapor/spray (appropriate wording to be specified by the manufacturer)
S26: In case of contact with eyes, rinse immediately with plenty of water and seek medical advice
S28: After contact with skin, wash immediately with plenty of ... (to be specified by the manufacturer)
S36/37/39: Wear suitable protective clothing, gloves and eye/face protection
S45: In case of accident or if you feel unwell, seek medical advice immediately (show label where possible)
S38: In case of insufficient ventilation, wear suitable respiratory equipment
S22: Do not breathe dust 
RIDADR: UN 2206 6.1/PG 2
WGK Germany: 2
RTECS: NQ8560000
F: 19
HazardClass: 6.1
PackingGroup: III

DOT Classification:  6.1; Label: KEEP AWAY FROM FOOD (UN 2207); DOT Class: 6.1; Label: Poison (UN 2206); DOT Class: 6.1; Label: Poison, Flammable Liquid (UN 3080); DOT Class: 3; Label: Flammable Liquid, Poison (UN 2478)

The 3-Chlorophenyl isocyanate(2909-38-8) is moisture sensitive and stable under normal temperatures and pressures but imcompatible with water, strong oxidizing agents, acids, strong bases, alcohols, amines.Hazardous decomposition products are hydrogen chloride, hydrogen cyanide, nitrogen oxides, carbon monoxide, carbon dioxide, oxides of chlorine, chlorinated phenols.