马来酰肼，又名抑芽丹、青鲜素、3,6-哒嗪二醇、3.6-二羟基哒嗪，是一种有机化合物，化学式为C4H4N2O2，为白色结晶性粉末，溶于热水，稍溶于热
乙醇，主要用作选择性
除草剂和暂时性植物生长抑制剂。
S26：In case of contact with eyes, rinse immediately with plenty of water and seek medical advice.
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 the lable where possible).
R36/37/38：Irritating to eyes, respiratory system and skin.
R40：Possible risks of irreversible effects.