Chemical identity

Diosmin EP Impurity G

CAS 520-33-2 · C16H14O6

01Identity

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

Lazychem IDLC-13118
PubChem CID72281
NameDiosmin EP Impurity G
CAS RN520-33-2
Molecular formulaC16H14O6
Molecular weight302.3 g/mol
IUPAC name(2S)-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-2,3-dihydro-4H-1-benzopyran-4-one
InChIKeyAIONOLUJZLIMTK-AWEZNQCLSA-N

02Structure identifiers

2D structurePubChem CID 72281
Two-dimensional chemical structure of Diosmin EP Impurity G, CAS 520-33-2
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 1 defined stereocentre. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count3
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCOC1=C(C=C(C=C1)[C@@H]2CC(=O)C3=C(C=C(C=C3O2)O)O)O
InChINot listed
Formula from structureC16H14O6
Molecular weight from structure302.3 g/mol

03Stereochemistry

The published structure contains 1 defined and 0 unassigned tetrahedral stereocentre. The exact wedge and dash depiction is shown above.

Defined centres1Structure assigned
Unassigned centres0Structure unspecified
Assignment statusFully assignedExact published identity
Tetrahedral upper bound≤ 2Before symmetry reduction

Published same-connectivity configurations

3 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 520-33-2 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 520-33-2 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

Diosmin

View API and impurity family

Other names

  • Hesperetin
  • Eriodictyol 4'-Monomethyl Ether
  • 4'-Methoxy-3',5,7-trihydroxyflavanone
  • NSC 57654
  • Hesperitin
  • 520-33-2
  • 3',5,7-Trihydroxy-4'-methoxyflavanone
  • 5,7,3'-Trihydroxy-4'-methoxyflavanone
  • (2S)-5,7-dihydroxy-2-(3-hydroxy-4-methoxyphenyl)-2,3-dihydrochromen-4-one
  • (-)-(S)-hesperetin
  • FEMA NO. 4313
  • Q9Q3D557F1

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