title: 3,6-Dibromo-7-ethyl-amino-4-methyl-2H-chromen-2-one.
abstract: In title compound, C(12)H(11)Br(2)NO(2), the coumarin ring system is almost planar, the two rings being inclined to one another by 1.40 (15)°. There are two short intra-molecular inter-actions (N-H⋯Br and C-H⋯Br) involving the Br atoms. In the crystal, mol-ecules stack along the a-axis direction via π-π inter-actions; the centroid-centroid distances vary from 3.6484 (19) to 3.7942 (19) Å.
authors.affiliation: Key Laboratory of Fine Chemical Engineering, Changzhou University, Changzhou 213164, Jiangsu,  People's Republic of China.
authors.forename: Ting
authors.initials: T
authors.lastname: Zhang
authors.forename: Huai-Jie
authors.initials: HJ
authors.lastname: Xing
authors.forename: Chun-Bao
authors.initials: CB
authors.lastname: Miao
authors.forename: Xiao-Qiang
authors.initials: XQ
authors.lastname: Sun
authors.forename: Hai-Tao
authors.initials: HT
authors.lastname: Xi