InChI=1S/C16H28O6S/c17-16(18)14-12-10-8-6-4-2-1-3-5-7-9-11-13-15-22-23(19,20)21/h2-5H,1,6-15H2,(H,17,18)(H,19,20,21)/b4-2-,5-3-