Guy Lamoureux,^a* Katherine Chaves,^a  Pierre Le Maguerès,^b Monserrat Meza^a

^a Escuela de Química, Universidad de Costa Rica, 2060 San Pedro, San José, Costa Rica

^b Rigaku Americas Corporation, 9009 New Trails Drive, The Woodlands, Texas, USA, 77381-5209

*Correspondence e-mail: guy.lamoureux@ucr.ac.cr

The title compound, C₉H₇NO₂S, is an example of a stable N-alkylthiophthalimide.

Sulfenamides are a group of compounds containing a S–N bond. The presence of acyl group on the nitrogen stabilize the bond and sulfenamides of phthalimide are known as as N-thiophthalimides.