1H-Indene,4-[(2E)-2-[(3S,5R)-3,5-bis[[(1,1-dimethylethyl)dimethylsilyl]oxy]-2-methylenecyclohexylidene]ethylidene]octahydro-7a-methyl-1-[(1R,2E,4R)-1,4,5-trimethyl-2-hexen-1-yl]-,(1R,3aS,4E,7aR)- (111594-58-2)

     [[(1a,3b,5E,7E,22E)-9,10-Secoergosta-5,7,10(19),22-tetraene-1,3-diyl]bis(oxy)]bis[(1,1-dimethylethyl)dimethylsilane] , has the CAS registry number of 111594-58-2. And it is also known as Silane,[[(1a,3b,5E,7E,22E)-9,10-secoergosta-5,7,10(19),22-tetraene-1,3-diyl]bis(oxy)]bis[(1,1-dimethylethyl)dimethyl-(9CI) .

     As the intermediate of doxercalciferol, it is a kind of white acicular crystal. It has been used in compounding various chemicals, such as compound doxercalciferol, Calcipotriol and calcitriol, etc. The storage method is to preserve it by sealing it airtight in the low temperature.

     You could convert it into the chemical structure by using the following chainings:
     SMILES:
O([Si](C(C)(C)C)(C)C)[C@@H]1CC(\C(=C)[C@@H](O[Si](C(C)(C)C)(C)C)C1)=C/C=C2\CCC[C@]3([C@H]2CC[C@@H]3[C@@H](/C=C/[C@H](C)C(C)C)C)C
     InChI:
InChI=1/C40H72O2Si2/c1-28(2)29(3)19-20-30(4)35-23-24-36-32(18-17-25-40(35,36)12)21-22-33-26-34(41-43(13,14)38(6,7)8)27-37(31(33)5)42-44(15,16)39(9,10)11/h19-22,28-30,34-37H,5,17-18,23-27H2,1-4,6-16H3/b20-19+,32-21+,33-22+/t29-,30+,34+,35+,36-,37-,40+/m0/s1