Chemical identity

Methylprednisolone Hydrogen Succinate EP Impurity A / Methylprednisolone / Methylprednisolone Acetate EP Impurity B

CAS 83-43-2 · C22H30O5

01Identity

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

Lazychem IDLC-20143
PubChem CID6741
NameMethylprednisolone Hydrogen Succinate EP Impurity A / Methylprednisolone / Methylprednisolone Acetate EP Impurity B
CAS RN83-43-2
Molecular formulaC22H30O5
Molecular weight374.47 g/mol
IUPAC name11β,17,21-Trihydroxy-6α-methylpregna-1,4-diene-3,20-dione
InChIKeyVHRSUDSXCMQTMA-PJHHCJLFSA-N

02Structure identifiers

2D structurePubChem CID 6741
2D structure: Methylprednisolone Hydrogen Succinate EP Impurity A / Methylprednisolone / Methylprednisolone Acetate EP Impurity B, CAS 83-43-2
Structure of Methylprednisolone Hydrogen Succinate EP Impurity A / Methylprednisolone / Methylprednisolone Acetate EP Impurity B (CAS 83-43-2). LazyChem record. Source identity: PubChem CID 6741. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC22H30O5
InChIKeyVHRSUDSXCMQTMA-PJHHCJLFSA-N
Ring count4
Defined stereocentres8
Unassigned stereocentres0
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)CO)O
InChIInChI=1S/C22H30O5/c1-12-8-14-15-5-7-22(27,18(26)11-23)21(15,3)10-17(25)19(14)20(2)6-4-13(24)9-16(12)20/h4,6,9,12,14-15,17,19,23,25,27H,5,7-8,10-11H2,1-3H3/t12-,14-,15-,17-,19+,20-,21-,22-/m0/s1

03Stereochemistry

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

Defined stereocentres82D structure
Unassigned stereocentres02D structure
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 256Before symmetry reduction

Published same-connectivity configurations

3 records

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.

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 / RCSNOT FOUND IN REVIEWED ENTRIESCAS 83-43-2 was not found in the reviewed exact-identity entries. Generic, class, analogue, salt and isomer provisions were not evaluated.
SCOMETNOT FOUND IN REVIEWED CAS ENTRIESCAS 83-43-2 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Prednisolone; Methylprednisolone

View API and impurity family

Other names

  • Methylprednisolone
  • Methylprednisolone for system suitability A CRS (Y0001799)
  • Methylprednisolone (1435003)
  • Methylprednisolone Hydrogen Succinate EP Impurity A
  • Methylprednisolone Acetate EP Impurity B
  • (6?, 11?)-11, 17, 21-Trihydroxy-6-methylpregna-1, 4-diene-3, 20-dione
  • Medrone
  • Medrol
  • Medrate
  • 6α-Methylprednisolone, 11β,17α,21-Trihydroxy-6α-methyl-1,4-pregnadiene-3,20-dione, 6α-Methyl-11β,17α,21-trihydroxy-1,4-pregnadiene-3,20-dione, Medrol, Medrone

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