Chemical identity

N-Desmethyl Rosuvastatin Lactone (Free Base)

CAS 1797419-58-9 · C21H24FN3O5S

01Identity

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

Lazychem IDLC-21219
PubChem CID71273139
NameN-Desmethyl Rosuvastatin Lactone (Free Base)
CAS RN1797419-58-9
Molecular formulaC21H24FN3O5S
Molecular weight449.5 g/mol
IUPAC nameN-[4-(4-fluorophenyl)-5-[(E)-2-[(2S,4R)-4-hydroxy-6-oxooxan-2-yl]ethenyl]-6-propan-2-ylpyrimidin-2-yl]methanesulfonamide
InChIKeyWSCHZXKSCWERQN-GUFYHEMZSA-N

02Structure identifiers

2D structurePubChem CID 71273139
Two-dimensional chemical structure of N-Desmethyl Rosuvastatin Lactone (Free Base), CAS 1797419-58-9
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 3 rings, includes aromatic atoms, includes aliphatic carbon, has 2 defined stereocentres, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres2
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCC(C)C1=NC(=NC(=C1/C=C/[C@@H]2C[C@H](CC(=O)O2)O)C3=CC=C(C=C3)F)NS(=O)(=O)C
InChINot listed
Formula from structureC21H24FN3O5S
Molecular weight from structure449.5 g/mol

03Stereochemistry

The published structure contains 2 defined and 0 unassigned tetrahedral stereocentres. The exact wedge and dash depiction is shown above.

Defined centres2Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 4Before 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 1797419-58-9 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1797419-58-9 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

Rosuvastatin

View API and impurity family

Other names

  • N-desmethyl Rosuvastatin-5S-lactone

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