| maleic hydrazide | <chemical> 1,2-dihydro-3,6-pyridazinedione. A herbicide and plant growth regulator; also used to control suckering of tobacco. Its residue in food and tobacco is highly toxic, causing CNS disturbances and liver damage. Pharmacological action: herbicides. Chemical name: 3,6-Pyridazinedione, 1,2-dihydro- (12 Dec 1998) |
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| hydrazide | An organic compound of the general formula RCO-NHNH2; an acyl derivative of hydrazine. (05 Mar 2000) |