InChI=1/C21H41NO4/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-22-18-15-17(16-23)19(24)21(26)20(18)25/h15,18-26H,2-14,16H2,1H3/p+1/t18-,19+,20-,21+/m0/s1/fC21H42NO4/h22H/q+1 4656FE62E6C39F16