title: N'-[1-(4-Amino-phen-yl)ethyl]pyrazine-2-carbohydrazide.
abstract: The title compound, C(13)H(13)N(5)O, crystallizes with two mol-ecules in the asymmetric unit. The crystal structure is stabilized by intra-molecular N-H⋯N and N-H⋯O hydrogen bonds. The dihedral angles between the pyrazine ring and the 4-aminolphenyl ring are 2.5 (1) and 6.5 (1)° in the two molecules.
authors.forename: Zhi-Yong
authors.initials: ZY
authors.lastname: Xing
authors.forename: De-Cheng
authors.initials: DC
authors.lastname: Yu
authors.forename: Lai-Jun
authors.initials: LJ
authors.lastname: Li
authors.forename: Hai-Yan
authors.initials: HY
authors.lastname: Liu
authors.forename: Jian-Fei
authors.initials: JF
authors.lastname: Zhang