Chemical identity

Prednisolone EP Impurity D/ 6β-Hydroxyprednisolone

CAS 16355-29-6 · C21H28O6

01Identity

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

Lazychem IDLC-25879
PubChem CID14726612
NamePrednisolone EP Impurity D/ 6β-Hydroxyprednisolone
CAS RN16355-29-6
Molecular formulaC21H28O6
Molecular weight376.44 g/mol
IUPAC name(6β,11β)-6,11,17,21-Tetrahydroxypregna-1,4-diene-3,20-dione
InChIKeyLJGWPGVRXUUNAG-UJXAPRPESA-N

02Structure identifiers

2D structurePubChem CID 14726612
Two-dimensional chemical structure of Prednisolone EP Impurity D/ 6β-Hydroxyprednisolone, CAS 16355-29-6
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 8 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres8
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[C@H](C4=CC(=O)C=C[C@]34C)O)O
InChINot listed
Formula from structureC21H28O6
Molecular weight from structure376.44 g/mol

03Stereochemistry

The published structure contains 8 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres8Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 256Before 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 16355-29-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 16355-29-6 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 D
  • 6-Hydroxyprednisolone
  • 16355-29-6
  • 6beta-Hydroxyprednisolone
  • UT5TNW0Q0U
  • CHEBI:180697
  • Pregna-1,4-diene-3,20-dione, 6,11,17,21-tetrahydroxy-, (6beta,11beta)-
  • RefChem:104845
  • 6
  • A-Hydroxy Prednisolone
  • (6R,8S,9S,10R,11S,13S,14S,17R)-6,11,17-trihydroxy-17-(2-hydroxyacetyl)-10,13-dimethyl-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-3-one
  • UNII-UT5TNW0Q0U

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