3-氯-4-甲基苯基异氰酸酯，是一种有机化合物，化学式为C8H6ClNO，主要用作除草剂
绿麦隆的中间体。
S23：Do not breathe gas/fumes/vapour/spray.
S26：In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
S36/37：Wear suitable protective clothing and gloves.
S45：In case of accident or if you feel unwell, seek medical advice immediately (show the lable where possible).
R20/21/22：Harmful by inhalation, in contact with skin and if swallowed.
R36/37/38：Irritating to eyes, respiratory system and skin.
R42：May cause sensitization by inhalation.