Chemical identity

Methylprednisolone Acetate EP Impurity C

CAS 58636-50-3 · C22H28O5

01Identity

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

Lazychem IDLC-20121
PubChem CID88818823
NameMethylprednisolone Acetate EP Impurity C
CAS RN58636-50-3
Molecular formulaC22H28O5
Molecular weight372.45 g/mol
IUPAC name11β,17-Dihydroxy-6α-methylpregna-1,4-diene-3,20,21-trione
InChIKeyQZZDSEJBNWOIRY-PJHHCJLFSA-N

02Structure identifiers

2D structurePubChem CID 88818823
Two-dimensional chemical structure of Methylprednisolone Acetate EP Impurity C, CAS 58636-50-3
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@H]1C[C@H]2[C@@H]3CC[C@@]([C@]3(C[C@@H]([C@@H]2[C@@]4(C1=CC(=O)C=C4)C)O)C)(C(=O)C=O)O
InChINot listed
Formula from structureC22H28O5
Molecular weight from structure372.45 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 58636-50-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 58636-50-3 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

Methylprednisolone Acetate

View API and impurity family

Other names

  • 21-Dehydro-6alpha-Methylprednisolone, Partially Hydrated
  • 58636-50-3
  • 2GSF7W6RRG
  • 21-Dehydro-6alpha-methyl prednisolone
  • 2-[(6S,8S,9S,10R,11S,13S,14S,17R)-11,17-dihydroxy-6,10,13-trimethyl-3-oxo-7,8,9,11,12,14,15,16-octahydro-6H-cyclopenta[a]phenanthren-17-yl]-2-oxoacetaldehyde
  • 21-Dehydro-6alpha-Methylprednisolone, Partially Hydrated (mixture of the aldehyde and the hydrated form)
  • UNII-2GSF7W6RRG
  • SCHEMBL11692143
  • Methylprednisolone acetate impurity C [EP]
  • METHYLPREDNISOLONE ACETATE IMPURITY C [EP IMPURITY]
  • 11beta,17-Dihydroxy-6alpha-methylpregna-1,4-diene-3,20,21-trione
  • Pregna-1,4-dien-21-al, 11beta,17-dihydroxy-6alpha-methyl-3,20-dioxo-

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