Chemical identity

Artemether EP Impurity C

CAS 181528-64-3 · C16H26O5

01Identity

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

Lazychem IDLC-06801
PubChem CID15812603
NameArtemether EP Impurity C
CAS RN181528-64-3
Molecular formulaC16H26O5
Molecular weight298.37 g/mol
IUPAC name(3aS,4R,6aS,7R,8S,10R,10aR)-8-methoxy-4,7-dimethyloctahydro-2H,10H-furo[3,2-i]isochromen-10-yl acetate
InChIKeyPJRDDUABDHLSPP-QYHITDJBSA-N

02Structure identifiers

2D structurePubChem CID 15812603
Two-dimensional chemical structure of Artemether EP Impurity C, CAS 181528-64-3
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 3 rings, includes aliphatic carbon, has 7 defined stereocentres. These statements are calculated from the published structure string.

Defined stereocentres7
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC[C@@H]1CC[C@H]2[C@H]([C@H](O[C@@H]([C@@]23[C@H]1CCO3)OC(=O)C)OC)C
InChINot listed
Formula from structureC16H26O5
Molecular weight from structure298.37 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

2 records

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.

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 181528-64-3 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 181528-64-3 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

Artemether

View API and impurity family

Other names

  • (3aS, 4R, 6aS, 7R, 8S, 10R, 10aR)-Octahydro-8-methoxy-4, 7-dimethyl-2H, 10H-furo[3, 2-i][2]benzopyran-10-ol 10-Acetate,
  • [3aS-(3a?, 4?, 6a?, 7?, 8?, 10?, 10aS*)]-Octahydro-8-methoxy-4, 7-dimethyl-2H, 10H-furo[3, 2-i][2]benzopyran-10-ol Acetate
  • Artemether Ph. Int. Impurity C
  • 2H,10H-Furo(3,2-i)-2-benzopyran-10-ol, octahydro-8-methoxy-4,7-dimethyl-, 10-acetate, (3aS,4R,6aS,7R,8S,10R,10aR)-
  • 181528-64-3
  • RefChem:267521
  • Artemether Impurity C
  • Artemether Tetrahydrofuran Acetate
  • [(3As,4R,6aS,7R,8S,10R,10aR)-8-methoxy-4,7-dimethyl-2,3,3a,4,5,6,6a,7,8,10-decahydrofuro[3,2-i]isochromen-10-yl] acetate
  • (1R,5S,6R,9S,10R,11S,13R)-11-methoxy-6,10-dimethyl-2,12-dioxatricyclo[7.4.0.0?,?]tridecan-13-yl acetate
  • (3aS,4R,6aS,7R,8S,10R,10aR)-Octahydro-8-methoxy-4,7-dimethyl-2H,10H-furo[3,2-i][2]benzopyran-10-ol 10-Acetate,
  • [3aS-(3aa,4a,6aa,7ss,8ss,10a,10aS*)]-Octahydro-8-methoxy-4,7-dimethyl-2H,10H-furo[3,2-i][2]benzopyran-10-ol Acetate

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