https://doi.org/10.1351/goldbook.H02885
Compounds derived from @O04374@ RkE(=O)l(OH)m (l ≠ 0) by replacing a double-bonded oxygen atom by =NNR2, as in carbohydrazonic acids, RC(OH)=NNH2 and sulfonohydrazonic acids, RS(=O)(=NNH2)OH.