Tacalcitol

Name: Tacalcitol — Molecular Data
Creator: MolForge
License: https://creativecommons.org/publicdomain/zero/1.0/

C₂₇H₄₄O₃ — CID 5283734

💊View drug profile → tacalcitol

Data last refreshed: 2026-04-15 (MolForge compound catalog, from PubChem)

IUPACtrans-(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R,5R)-5-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol

SMILESC=C1/C(=C\C=C2/CCC[C@]3(C)[C@@H]([C@H](C)CC[C@@H](O)C(C)C)CC[C@@H]23)C[C@@H](O)C[C@@H]1O

InChIInChI=1S/C27H44O3/c1-17(2)25(29)13-8-18(3)23-11-12-24-20(7-6-14-27(23,24)5)9-10-21-15-22(28)16-26(30)19(21)4/h9-10,17-18,22-26,28-30H,4,6-8,11-16H2,1-3,5H3/b20-9+,21-10-/t18-,22-,23-,24+,25-,26+,27-/m1/s1

InChIKeyBJYLYJCXYAMOFT-RSFVBTMBSA-N

MW416.65 g/mol

LogP5.56

Rot. Bonds6

About Tacalcitol

Tacalcitol (PubChem CID 5283734) has the molecular formula C₂₇H₄₄O₃ and a molecular weight of 416.65 g/mol. Its IUPAC name is trans-(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R,5R)-5-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol.

Molecular Properties

Compound Name	Tacalcitol
PubChem CID	5283734
Molecular Formula	C₂₇H₄₄O₃
Molecular Weight	416.65 g/mol
Exact Mass	416.33
IUPAC Name	trans-(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R,5R)-5-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
SMILES	C=C1/C(=C\C=C2/CCC[C@]3(C)[C@@H]([C@H](C)CC[C@@H](O)C(C)C)CC[C@@H]23)C[C@@H](O)C[C@@H]1O
InChI	InChI=1S/C27H44O3/c1-17(2)25(29)13-8-18(3)23-11-12-24-20(7-6-14-27(23,24)5)9-10-21-15-22(28)16-26(30)19(21)4/h9-10,17-18,22-26,28-30H,4,6-8,11-16H2,1-3,5H3/b20-9+,21-10-/t18-,22-,23-,24+,25-,26+,27-/m1/s1
InChIKey	BJYLYJCXYAMOFT-RSFVBTMBSA-N
XLogP	5.56
TPSA	60.69 Å²
H-Bond Donors	3
H-Bond Acceptors	3
Rotatable Bonds	6
Heavy Atoms	30
Complexity	—

Lipinski Rule of Five

1 violation

Rule	Value
MW ≤ 500	416.65
LogP ≤ 5	5.56
H-Bond Donors ≤ 5	3
H-Bond Acceptors ≤ 10	3

Related Compounds

Frequently Asked Questions

What is the IUPAC name of Tacalcitol?

The IUPAC name of Tacalcitol (CID 5283734) is trans-(1R,3S,5Z)-5-[(2E)-2-[(1R,3aS,7aR)-1-[(2R,5R)-5-hydroxy-6-methylheptan-2-yl]-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol.

What is the SMILES notation for Tacalcitol?

The canonical SMILES for Tacalcitol is C=C1/C(=C\C=C2/CCC[C@]3(C)[C@@H]([C@H](C)CC[C@@H](O)C(C)C)CC[C@@H]23)C[C@@H](O)C[C@@H]1O.

What is the InChIKey of Tacalcitol?

The InChIKey is BJYLYJCXYAMOFT-RSFVBTMBSA-N. The full InChI is InChI=1S/C27H44O3/c1-17(2)25(29)13-8-18(3)23-11-12-24-20(7-6-14-27(23,24)5)9-10-21-15-22(28)16-26(30)19(21)4/h9-10,17-18,22-26,28-30H,4,6-8,11-16H2,1-3,5H3/b20-9+,21-10-/t18-,22-,23-,24+,25-,26+,27-/m1/s1.

What are the key properties of Tacalcitol?

Tacalcitol has a molecular weight of 416.65 g/mol, XLogP of 5.56, 6 rotatable bonds, 3 hydrogen bond donors, and 3 hydrogen bond acceptors.

Where does this data come from?

All data for Tacalcitol is sourced from PubChem (CID 5283734), the world's largest open chemistry database maintained by the National Library of Medicine (NIH).

Browse: Molecules: T · all molecules A–Z · drugs A–Z · protein targets A–Z.

Sources

PubChem CID 5283734 — identifiers, structure, computed properties (public domain)
DrugCentral drug card 4727 — approved-drug record (CC BY-SA 4.0)

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