title: 3-[(2E)-2-(Butan-2-yl-idene)hydrazin-yl]-6-chloro-pyridazine.
abstract: The asymmetric unit of the title compound, C(8)H(11)ClN(4), contains two independent mol-ecules (A and B) with slightly different conformations: the dihedral angles between the 3-chloro-6-hydrazinylpyridazine units and butyl side chains are 4.5 (2) and 11.98 (16)°. In the crystal, the A and B mol-ecules are linked by a pair of N-H⋯N hydogen bonds, generating an R(2) (2)(8) loop.
authors.forename: Abdul Qayyum
authors.initials: AQ
authors.lastname: Ather
authors.forename: M Nawaz
authors.initials: MN
authors.lastname: Tahir
authors.forename: Misbahul Ain
authors.initials: MA
authors.lastname: Khan
authors.forename: Muhammad Makshoof
authors.initials: MM
authors.lastname: Athar