Chemical identity

Triamcinolone EP Impurity C / Pretriamcinolone

CAS 337-02-0 · C21H29FO6

01Identity

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

Lazychem IDLC-30105
PubChem CID228785
NameTriamcinolone EP Impurity C / Pretriamcinolone
CAS RN337-02-0
Molecular formulaC21H29FO6
Molecular weight396.45 g/mol
IUPAC name9-Fluoro-11β,16α,17,21-tetrahydroxypregn-4-ene-3,20-dione
InChIKeySXQQMCLQCSKJNC-OBYCQNJPSA-N

02Structure identifiers

2D structurePubChem CID 228785
2D structure: Triamcinolone EP Impurity C / Pretriamcinolone, CAS 337-02-0
Structure of Triamcinolone EP Impurity C / Pretriamcinolone (CAS 337-02-0). LazyChem record. Source identity: PubChem CID 228785. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC21H29FO6
InChIKeySXQQMCLQCSKJNC-OBYCQNJPSA-N
Ring count4
Defined stereocentres8
Unassigned stereocentres0
SMILESC[C@]12CCC(=O)C=C1CC[C@@H]3[C@@]2([C@H](C[C@]4([C@H]3C[C@H]([C@@]4(C(=O)CO)O)O)C)O)F
InChIInChI=1S/C21H29FO6/c1-18-6-5-12(24)7-11(18)3-4-13-14-8-15(25)21(28,17(27)10-23)19(14,2)9-16(26)20(13,18)22/h7,13-16,23,25-26,28H,3-6,8-10H2,1-2H3/t13-,14-,15+,16-,18-,19-,20-,21-/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

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 / RCSNOT FOUND IN REVIEWED ENTRIESCAS 337-02-0 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 337-02-0 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Triamcinolone

View API and impurity family

Other names

  • Triamcinolone EP Impurity C
  • Pretriamcinolone
  • 9-Fluoro-11beta,16alpha,17,21-tetrahydroxypregn-4-ene-3,20-dione
  • 1,2-Dihydrotriamcinolone
  • 9
  • A-Fluoro-16
  • A-hydroxyhydrocortisone
  • 9alpha-Fluoro-16alpha-hydroxyhydrocortisone
  • 9alpha-Fluoro-11beta,16alpha,17alpha,21-tetrahydroxypregn-4-ene-3,20-dione

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