Molbank 2012, M763; doi:10.3390/M763 molbank ISSN 1422-8599 www.mdpi.com/journal/molbank Short Note 2-(2-Imino-1-methylimidazolidin-4- ylidene)hydrazinecarbothioamide Ahmed A. Al-Amiery 1,2, *, Abdul Amir H. Kadhum 1 and Abu Bakar Mohamad 1 1 Department of Chemical & Process Engineering, Universiti Kebangsaan Malaysia, 43600 Bangi Selangor, Malaysia 2 Applied Chemistry division, Applied Science Department, University of Technology (UOT), Baghdad, Iraq * Author to whom correspondence should be addressed; E-Mail: dr.ahmed1975@gmail.com; Tel.: +6-0-192-903-670. Received: 21 May 2012 / Accepted: 19 June 2012 / Published: 3 July 2012 Abstract: A new thiosemicarbazone, 1-methyl-2-imino-N-(methanethialdiamine)-yl-4- iminoimidazolidin was synthesized and its UV-VIS, IR, and NMR spectroscopic data and CHN analysis are presented. Keywords: 2-(2-imino-1-methylimidazolidin-4-ylidene)hydrazinecarbothioamide; thiosemicarbazide; thiosemicarbazones The chemistry of thiosemicarbazones has received considerable attention because of their variable bonding modes, promising biological implications, structural diversity, and ion-sensing ability [1,2]. They have been used as drugs and are reported to possess a wide variety of biological activities against bacteria, fungi, and certain type of tumors, and they are also a useful model for bioinorganic processes [3]. In continuation of previous studies [4–14], we have focused on synthesis of new heterocyclic compounds, and herein we are reporting the synthesis of 1-methyl-2-imino-N-(methanethialdiamine)- yl-4-iminoimidazolidin as new molecule (Scheme 1). OPEN ACCESS