Thiosemicarbazone

A thiosemicarbazone is an organosulfur compound with the formula H₂NC(S)NHN=CR₂. Many variations exist, including those where some or all of the NH centers are substituted by organic groups. Thiosemicarbazones are usually produced by condensation of a thiosemicarbazide with an aldehyde or ketone:

H₂NC(S)NHNH₂ + O=CR₂ → H₂NC(S)NHN=CR₂ + H₂O

In terms of their chemical structures, the CSN3 core atoms are coplanar.

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