Hydrazides in organic chemistry are a class of organic compounds with the formula R−NR1−NR2R3 where R is acyl (R'−C(=O)−), sulfonyl (R'−S(=O)2−), phosphoryl ((R'−)2P(=O)−), phosphonyl ((R'−O−)2P(=O)−) and similar groups (chalcogen analogs are included, for example sulfur analogs called thiohydrazides),[1] R1, R2, R3 and R' are any groups (typically hydrogen or organyl).[2] Unlike hydrazine and alkylhydrazines, hydrazides are nonbasic owing to the inductive influence of the acyl, sulfonyl, or phosphoryl substituent.