There are two independent mol-ecules in the asymmetric unit of the title compound, C6H12N2S, in which the N-methyl-thio-formamide unit and the pyrrolidine ring mean plane are oriented at dihedral angles of 5.9?(5) and 5.9?(4)°. In the crystal, zigzag C(4) chains extending along the a axis are formed due to N—H?S hydrogen bonds between alternate arrangements of mol-ecules. The chains are inter-linked by C—H?S hydrogen bonds.
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