ERROR opening https://cactus.nci.nih.gov/chemical/structure/InChI=1S/C50H83NO20/c1-20-5-8-27-21(2)33-28(51(27)15-20)14-26-24-7-6-22-13-23(9-11-49(22,3)25(24)10-12-50(26,
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47-,48-,49-,50-/m0/s1/file?format=sdf&get3d=True  -- InChI=1S/C50H83NO20/c1-20-5-8-27-21(2)33-28(51(27)15-20)14-26-24-7-6-22-13-23(9-11-49(22,3)25(24)10-12-50(26,
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64-45/h20-48,52-63H,5-19H2,1-4H3/t20-,21+,22-,23-,24+,25-,26-,27-,28-,29+,30+,31+,32+,33-,34-,35+,36+,37-,38+,39+,40+,41+,42-,43-,44+,45-,46+,
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