Chemical identity

Δ-9,11-betamethasone 21-acetate

CAS 910-99-6 · C24H30O5

01Identity

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

Lazychem IDLC-31188
PubChem CID3744482
NameΔ-9,11-betamethasone 21-acetate
CAS RN910-99-6
Molecular formulaC24H30O5
Molecular weight398.5 g/mol
IUPAC name17α,21-dihydroxy-16ß-methylpregna-1,4,9(11)-triene-3,20-dione-21-acetate
InChIKeyAAPZMQVULRVUEU-UHFFFAOYSA-N

02Structure identifiers

2D structurePubChem CID 3744482
Two-dimensional chemical structure of Δ-9,11-betamethasone 21-acetate, CAS 910-99-6
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. These statements are calculated from the published structure string.

Defined stereocentres0
Unassigned stereocentres6
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC1CC2C3CCC4=CC(=O)C=CC4(C3=CCC2(C1(C(=O)COC(=O)C)O)C)C
InChINot listed
Formula from structureC24H30O5
Molecular weight from structure398.5 g/mol

03Stereochemistry

The published structure contains 0 defined and 6 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres0Structure assigned
Unassigned centres6Structure unspecified
Assignment statusUnassignedExact published identity
Tetrahedral upper bound≤ 64Before 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 / RCSNO EXACT MATCH FOUNDCAS 910-99-6 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 910-99-6 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

Betamethasone

View API and impurity family

Other names

  • Delta-9,11-betamethasone 21-acetate

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