
Chemical identity
Calcitriol Impurity 10
CAS not listed · C27H44O2
01Identity
Identifiers and names for this exact compound. Empty fields are left unassigned.
| Lazychem ID | LC-49093 |
|---|---|
| PubChem CID | 5283722 |
| Name | Calcitriol Impurity 10 |
| CAS RN | Not listed |
| Molecular formula | C27H44O2 |
| Molecular weight | 400.6 g/mol |
| IUPAC name | cis-(1R,3R,5E)-5-[(2E)-2-[(1R,3aS,7aR)-7a-methyl-1-[(2R)-6-methylheptan-2-yl]-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol |
| InChIKey | OFHCOWSQAMBJIW-SJPBCETESA-N |
02Structure identifiers

The parsed structure contains 3 rings, includes aliphatic carbon, has 6 defined stereocentres. These statements are calculated from the published structure string.
| Defined stereocentres | 6 |
|---|---|
| Unassigned stereocentres | 0 |
| Ring count | 3 |
| Secondary amines | 0 |
| Tertiary amines | 0 |
| N-methyl amine sites | 0 |
| SMILES | C[C@H](CCCC(C)C)[C@H]1CC[C@@H]\2[C@@]1(CCC/C2=C\C=C\3/C[C@H](C[C@H](C3=C)O)O)C |
|---|---|
| InChI | Not listed |
| Formula from structure | C27H44O2 |
| Molecular weight from structure | 400.6 g/mol |
03Stereochemistry
The published structure contains 6 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.
Published same-connectivity configurations
7 recordsThese records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

![Two-dimensional chemical structure of 5-[2-[1-(1,5-dimethylhexyl)-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylene-cyclohexane-1,3-diol](/structures/pubchem/2091-300.png)
5-[2-[1-(1,5-dimethylhexyl)-7a-methyl-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylene-cyclohexane-1,3-diol
CAS not listed
OFHCOWSQAMBJIW-UHFFFAOYSA-N
0 defined, 6 unassigned centres
![Two-dimensional chemical structure of 5-[2-[7a-methyl-1-(6-methylheptan-2-yl)-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol](/structures/pubchem/11661297-300.png)
5-[2-[7a-methyl-1-(6-methylheptan-2-yl)-2,3,3a,5,6,7-hexahydro-1H-inden-4-ylidene]ethylidene]-4-methylidenecyclohexane-1,3-diol
CAS not listed
OFHCOWSQAMBJIW-SCEGRCEFSA-N
5 defined, 1 unassigned centres

Alfacalcidol EP Impurity A/ trans-Alfacalcidol
CAS 65445-14-9
OFHCOWSQAMBJIW-AOSUDXALSA-N
6 defined, 0 unassigned centres

Alfacalcidol EP Impurity B / 1β-calcidol
CAS 63181-13-5
OFHCOWSQAMBJIW-FLFCXVRSSA-N
6 defined, 0 unassigned centres


Scope: The mathematical 2^n value is only an upper bound. Symmetry and other stereogenic elements can change the number of distinct stereoisomers. A hypothetical configuration is not published as a compound record without a verified structure identity.
04India status for this compound
These results apply only to this exact compound name and CAS number. Confirm the current official instruments before making a regulatory decision.
| NDPS / RCS | NO EXACT MATCH FOUND | No CAS number is available for an exact comparison. |
|---|---|---|
| SCOMET | NO EXACT REVIEWED CAS MATCH | No CAS number is available for an exact comparison. |
| Review date | 2026-08-01 | Recheck the current official instruments for the material, concentration, activity and date in question. |
- Narcotic Drugs and Psychotropic Substances Act, 1985, ScheduleDepartment of Revenue, Government of India · reviewed 2026-08-01
- Controlled-substances notifications and amendmentsDepartment of Revenue, Government of India · reviewed 2026-08-01
- Appendix 3, SCOMET ListDirectorate General of Foreign Trade, Government of India · reviewed 2026-08-01
05Names and relationships
Associated parent compound
No parent compound is listed.
Other names
No synonyms are listed.
06Documented history
Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.
No verified discovery, first report, occurrence, use or issue event is currently available for this identity.
07Sources
- S01PubChem compound record, CID 5283722
Names and machine-readable chemical identity properties.
- S02NCBI website and molecular data policies
Reuse policy for NCBI molecular data. This page does not reproduce vendor descriptions or contributed narrative text.
- S03Narcotic Drugs and Psychotropic Substances Act, 1985, Schedule
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S04Controlled-substances notifications and amendments
Department of Revenue, Government of India. Used for the exact-compound India status shown on this page.
- S05Appendix 3, SCOMET List
Directorate General of Foreign Trade, Government of India. Used for the exact-compound India status shown on this page.
