organic compounds
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In the title compound, C8H10Cl2N4O, the dichloro-substituted triazine ring and the quasi-plane of the five-membered dimethyl-substituted oxazolidine unit, in which the O atom lies 0.228 (1) Å out of the least-squares plane, are close to being coplanar [dihedral angle = 4.99 (10)°]. In the crystal, molecules are linked by intermolecular C—HCl interactions, forming chains extend along the a axis. Also present are weak π–π interactions between triazine rings [minimum ring centroid separation = 3.7427 (11) Å].