Received 24 November 2013
aCollege of Biotechnology and Pharmaceutical Engineering, Nanjing University of Technology, Nanjing 210009, People's Republic of China,bNational Engineering Technique Research Center for Biotechnology, Nanjing 211816, People's Republic of China, and cResearch Institute of Benzene Chemical, Research Institute of Nanjing Chemical Industry Group, No. 699 Geguan Road, Dachang, Nanjing 210044, People's Republic of China
Correspondence e-mail: firstname.lastname@example.org
In the title compound, C21H26O2SSe, the S atom adopts a pyramidal geometry (bond-angle sum = 304°) and the n-butyl chain shows an extended conformation. An intramolecular C-HO hydrogen bond closes an S(8) ring. In the crystal, inversion dimers are formed with molecules linked by pairs of O-HO=S hydrogen bonds, generating R22(14) loops. Weak C-HO interactions also occur.
Data collection: SMART (Bruker, 2001); cell refinement: SAINT (Bruker, 2001); data reduction: SAINT; program(s) used to solve structure: SHELXS97 (Sheldrick, 2008); program(s) used to refine structure: SHELXL97 (Sheldrick, 2008); molecular graphics: SHELXTL (Sheldrick, 2008); software used to prepare material for publication: SHELXTL.
Supplementary data and figures for this paper are available from the IUCr electronic archives (Reference: HB7167 ).
The authors thank the Center of Test and Analysis, Nanjing University, for the data collection.