Chemical identity

Norethindrone EP Impurity C / Δ-5(6)-Norethindrone

CAS 22933-71-7 · C20H26O2

01Identity

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

Lazychem IDLC-23707
PubChem CID71751195
NameNorethindrone EP Impurity C / Δ-5(6)-Norethindrone
CAS RN22933-71-7
Molecular formulaC20H26O2
Molecular weight298.42 g/mol
IUPAC name17-hydroxy-19-nor-17α-pregn-5-en-20-yn-3-one
InChIKeyQGQUHXSBTSDAML-XGXHKTLJSA-N

02Structure identifiers

2D structurePubChem CID 71751195
2D structure: Norethindrone EP Impurity C / Δ-5(6)-Norethindrone, CAS 22933-71-7
Structure of Norethindrone EP Impurity C / Δ-5(6)-Norethindrone (CAS 22933-71-7). LazyChem record. Source identity: PubChem CID 71751195. Confirm the identifiers before analytical use.Download structure image

Structure facts for this exact identity.

Molecular formulaC20H26O2
InChIKeyQGQUHXSBTSDAML-XGXHKTLJSA-N
Ring count4
Defined stereocentres6
Unassigned stereocentres0
SMILESC[C@]12CC[C@@H]3[C@H]4CCC(=O)CC4=CC[C@H]3[C@@H]1CC[C@]2(C#C)O
InChIInChI=1S/C20H26O2/c1-3-20(22)11-9-18-17-6-4-13-12-14(21)5-7-15(13)16(17)8-10-19(18,20)2/h1,4,15-18,22H,5-12H2,2H3/t15-,16+,17+,18-,19-,20-/m0/s1

03Stereochemistry

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

Defined stereocentres62D structure
Unassigned stereocentres02D structure
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 64Before 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 22933-71-7 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 22933-71-7 was not found in the reviewed exact-CAS mapping. Generic and analogue entries were not evaluated.

05Names and relationships

Associated parent compound

Norethindrone

View API and impurity family

Other names

  • Norethindrone EP Impurity C
  • Δ-5(6)-Norethindrone
  • delta-5(6)-Norethindrone
  • delta-5(6)-Didehydronorethindrone
  • (8R,9s,10r,13s,14s,17r)-17-ethynyl-17-hydroxy-13-methyl-1,2,4,7,8,9,10,11,12,14,15,16-dodecahydrocyclopenta[a]phenanthren-3-one
  • 17
  • A-Ethynyl-19-nor-
  • currency-5(6)-androsten-17
  • A-ol-3-one

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