Chemical identity

Stanozolol EP Impurity B/ Oxymetholone (Free Base)

CAS 434-07-1 · C21H32O3

01Identity

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

Lazychem IDLC-28427
PubChem CID5281034
NameStanozolol EP Impurity B/ Oxymetholone (Free Base)
CAS RN434-07-1
Molecular formulaC21H32O3
Molecular weight332.48 g/mol
IUPAC name17β-hydroxy-2-(hydroxymethylene)-17-methyl-5α- androstan-3-one
InChIKeyICMWWNHDUZJFDW-DHODBPELSA-N

02Structure identifiers

2D structurePubChem CID 5281034
Two-dimensional chemical structure of Stanozolol EP Impurity B/ Oxymetholone (Free Base), CAS 434-07-1
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, has 7 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres7
Unassigned stereocentres0
Ring count4
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@]12CC[C@H]3[C@H]([C@@H]1CC[C@]2(C)O)CC[C@@H]4[C@@]3(C/C(=C/O)/C(=O)C4)C
InChINot listed
Formula from structureC21H32O3
Molecular weight from structure332.48 g/mol

03Stereochemistry

The published structure contains 7 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres7Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 128Before 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 434-07-1 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 434-07-1 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

Stanozolol

View API and impurity family

Other names

  • Stanozolol EP Impurity B (Free Base)
  • 2-Hydroxymethylene-17alpha-methyldihydrotestosterone
  • 4, 5-Dihydro-2-hydroxymethylene-17-alpha-methyltestosterone
  • Oxymetholone

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