Chemical identity

Triamcinolone Acetonide EP Impurity E/ 1,2-Dihydrotriamcinolone Acetonide

CAS 1524-86-3 · C24H33FO6

01Identity

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

Lazychem IDLC-30099
PubChem CID228786
NameTriamcinolone Acetonide EP Impurity E/ 1,2-Dihydrotriamcinolone Acetonide
CAS RN1524-86-3
Molecular formulaC24H33FO6
Molecular weight436.51 g/mol
IUPAC name9-Fluoro-11β,21-dihydroxy-16α,17-(1-methylethylidenedioxy)pregna-4-ene-3,20-dione
InChIKeyTZFZVQNBXVBQDC-JNQJZLCISA-N

02Structure identifiers

2D structurePubChem CID 228786
Two-dimensional chemical structure of Triamcinolone Acetonide EP Impurity E/ 1,2-Dihydrotriamcinolone Acetonide, CAS 1524-86-3
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 5 rings, 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 count5
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@]12CCC(=O)C=C1CC[C@@H]3[C@@]2([C@H](C[C@]4([C@H]3C[C@@H]5[C@]4(OC(O5)(C)C)C(=O)CO)C)O)F
InChINot listed
Formula from structureC24H33FO6
Molecular weight from structure436.51 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 1524-86-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1524-86-3 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

Triamcinolone

View API and impurity family

Other names

  • Triamcinolone Acetonide EP Impurity E
  • 1, 2-Dihydrotriamcinolone Acetonide
  • 9-Fluoro-11beta,21-dihydroxy-16alpha,17-(isopropylidenedioxy)pregn-4-ene-3,20-dione
  • 1524-86-3
  • 9-Fluoro-16a,17-(isopropylidenedioxy)corticosterone
  • (1S,2S,4R,8S,9S,11S,12R,13S)-12-fluoro-11-hydroxy-8-(2-hydroxyacetyl)-6,6,9,13-tetramethyl-5,7-dioxapentacyclo[10.8.0.02,9.04,8.013,18]icos-17-en-16-one
  • UX031M662V
  • NSC-21915
  • 11beta,16alpha,17alpha,21-Tetrahydroxy-9alpha-fluoropregn-4-ene-3,20-dione 16,17-acetonide
  • (11beta,16alpha)-9-Fluoro-11,21-dihydroxy-16,17-[(1-methylethylidene)bis(oxy)]pregn-4-ene-3,20-dione
  • MLS002638824
  • UNII-UX031M662V

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