Chemical identity

Prednisolone EP Impurity H / Δ6-Prednisolone

CAS 2427-64-7 · C21H26O5

01Identity

Identifiers and names for this exact compound. Empty fields are left unassigned.

Lazychem IDLC-25885
PubChem CID224451
NamePrednisolone EP Impurity H / Δ6-Prednisolone
CAS RN2427-64-7
Molecular formulaC21H26O5
Molecular weight358.43 g/mol
IUPAC name11β,17,21-Trihydroxypregna-1,4,6-triene-3,20-dione
InChIKeyWFFSJFFZKKRVOE-VWUMJDOOSA-N

02Structure identifiers

2D structurePubChem CID 224451
Two-dimensional chemical structure of Prednisolone EP Impurity H / Δ6-Prednisolone, CAS 2427-64-7
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 4 rings, includes aliphatic carbon, has 7 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres7
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@]12C[C@@H]([C@H]3[C@H]([C@@H]1CC[C@@]2(C(=O)CO)O)C=CC4=CC(=O)C=C[C@]34C)O
InChINot listed
Formula from structureC21H26O5
Molecular weight from structure358.43 g/mol

03Stereochemistry

The published structure contains 7 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres7Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 128Before symmetry reduction

Published same-connectivity configurations

1 record

These records have the same connectivity, molecular formula and protonation layer, but a different complete InChIKey stereochemical layer. Only separately structure-linked records are shown.

No additional structure-linked configuration with the same connectivity is currently present in the LazyChem dataset.

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 / RCSNO EXACT MATCH FOUNDCAS 2427-64-7 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 2427-64-7 has no exact match in the reviewed SCOMET list.
Review date2026-08-01Recheck the current official instruments for the material, concentration, activity and date in question.

05Names and relationships

Associated parent compound

Prednisolone

View API and impurity family

Other names

  • Prednisolone EP Impurity H
  • (8S, 9S, 10R, 11S, 13S, 14S, 17R)-11, 17-dihydroxy-17-(2-hydroxyacetyl)-10, 13-dimethyl-9, 11, 12, 14, 15, 16-hexahydro-8H-cyclopenta[a]phenanthren-3-one
  • Δ6-Prednisolone

Related records from the same parent family

06Documented history

Dated discovery, occurrence, use and issue claims are published only when a suitable primary or government source is available.

No dated history available

No verified discovery, first report, occurrence, use or issue event is currently available for this identity.

07Sources