Chemical identity

Mometasone EP Impurity B

CAS 223776-49-6 · C28H31ClO8S

01Identity

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

Lazychem IDLC-20531
PubChem CID15454210
NameMometasone EP Impurity B
CAS RN223776-49-6
Molecular formulaC28H31ClO8S
Molecular weight563.06 g/mol
IUPAC name9-Chloro-17β-(2,2-dioxo-2,5-dihydro-1,2λ6 -oxathiol-4-yl)-11β-hydroxy-16α-methyl-3-oxoandrosta-1,4-dien-17α-yl furan-2-carboxylate
InChIKeyCICBZJUKOHKGNN-YRGVOICOSA-N

02Structure identifiers

2D structurePubChem CID 15454210
Two-dimensional chemical structure of Mometasone EP Impurity B, CAS 223776-49-6
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 6 rings, includes aromatic atoms, includes aliphatic carbon, has 8 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres8
Unassigned stereocentres0
Ring count6
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@@H]1C[C@H]2[C@@H]3CCC4=CC(=O)C=C[C@@]4([C@]3([C@H](C[C@@]2([C@]1(C5=CS(=O)(=O)OC5)OC(=O)C6=CC=CO6)C)O)Cl)C
InChINot listed
Formula from structureC28H31ClO8S
Molecular weight from structure563.06 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 223776-49-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 223776-49-6 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

Mometasone

View API and impurity family

Other names

  • 4-[9-Chloro-17-[(furan-2-yl-carbonyl)oxy]-11beta-hydroxy-16alpha-methyl-3-oxoandrosta-1, 4-dien-17beta-yl]-5H-1, 2-oxathiole 2, 2-Dioxide
  • [(8S, 9R, 10S, 11S, 13S, 14S, 16R, 17R)-9-chloro-17-(2, 2-dioxo-5H-oxathiol-4-yl)-11-hydroxy-10, 13, 16-trimethyl-3-oxo-6, 7, 8, 11, 12, 14, 15, 16-octahydrocyclopenta[a]phenanthren-17-yl] furan-2-carboxylate
  • Mometasone Furoate EP Impurity B
  • 223776-49-6
  • 8MZU56S9QP
  • (11b,16a,17a)-9-Chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-androsta-1,4-dien-3-one
  • Androsta-1,4-dien-3-one, 9-chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methyl-, (11ss,16a,17a)-
  • (11ss,16a,17a)-9-Chloro-17-(2,2-dioxido-5H-1,2-oxathiol-4-yl)-17-[(2-furanylcarbonyl)oxy]-11-hydroxy-16-methylandrosta-1,4-dien-3-one
  • Mometasone Furoate Imp. B (EP)
  • UNII-8MZU56S9QP
  • C28H31ClO8S
  • Mometasone furoate impurity B [EP]

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