Gas Chromatographic Retention Indices of 2-chlorobenzylidenemalononitrile and its Analogues

  • P. K. Gutch Defence Research & Development Establishment, Gwalior
  • R. K. Srivastava Defence Research & Development Establishment, Gwalior
Keywords: Chemical warfare agents riot control agents, retention indices, gas chromatography


Riot control agent, 2-chlorobenzylidenemalononitrile (CS) and its analogues have both skin irritating and lacrymating properties. Herein, we report retention indices (RI) of CS and its thirteen analogues relative to the homologues n-alkanes series. These values are determined on nonpolar BP-1 and polar BP-10 capillary column under programmed temperature and isothermal chromatographic condition. The analogues differ in substitution at ortho or para position of phenyl ring and retention indices are found to vary according to the nature of the substituent.

Defence Science Journal, 2012, 62(5), pp.319-323, DOI:

Author Biographies

P. K. Gutch, Defence Research & Development Establishment, Gwalior
Dr P.K. Gutch received his PhD (Organic Chemistry) from Jiwaji University, Gwalior, in 1997. He is working as a Scientist in Defence Research and Development Establishment (DRDE), Gwalior. He has published more than 70 research paper in national international journals and has eight patents to his credit. His research interests include: CR, CS, and CN related to defence application. Presently he is working on synthesis of various polymers for SAW –based chemical sensor and decontamination of chemical warfare agents by using organic and polymeric N-Chloro compounds.
R. K. Srivastava, Defence Research & Development Establishment, Gwalior
Mr R.K. Shrivastava obtained his MSc (Applied Chemistry) from Jiwaji University Gwalior. He is working as Scientist D in DRDE, Gwalior. His areas of research include: Extraction and analysis of toxic chemicals from environmental matrices using analytical techniques like GC and GCMS.


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How to Cite
Gutch, P., & Srivastava, R. (2012). Gas Chromatographic Retention Indices of 2-chlorobenzylidenemalononitrile and its Analogues. Defence Science Journal, 62(5), 319-323.
Chemical Science & Technology