Chemical identity

Levothyroxine Ethyl Ester

CAS 76353-71-4 · C17H15I4NO4

01Identity

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

Lazychem IDLC-18650
PubChem CID54050781
NameLevothyroxine Ethyl Ester
CAS RN76353-71-4
Molecular formulaC17H15I4NO4
Molecular weight804.92
IUPAC nameEthyl 2-amino-3-(4-(4-hydroxy-3,5-diiodophenoxy)-3,5-diiodo phenyl) propanoate ;
InChIKeyLSSGNEFHGVQOPA-AWEZNQCLSA-N

02Structure identifiers

2D structurePubChem CID 54050781
Two-dimensional chemical structure of Levothyroxine Ethyl Ester, CAS 76353-71-4
Two-dimensional structure for the PubChem identity linked to this record. Confirm the identifiers before analytical use.

The parsed structure contains 2 rings, includes aromatic atoms, includes aliphatic carbon, has 1 defined stereocentre, contains at least one halogen atom. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESCCOC(=O)[C@H](CC1=CC(=C(C(=C1)I)OC2=CC(=C(C(=C2)I)O)I)I)N
InChINot listed
Formula from structureC17H15I4NO4
Molecular weight from structure804.92

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

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 76353-71-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 76353-71-4 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

Levothyroxine

View API and impurity family

Other names

  • O-(4-Hydroxy-3, 5-diiodophenyl)-3, 5-diiodo-L-tyrosine Ethyl Ester
  • L-Thyroxine Ethyl Ester
  • Thyroxine Ethyl Ester
  • 76353-71-4
  • ETHYL (2S)-2-AMINO-3-[4-(4-HYDROXY-3,5-DIIODOPHENOXY)-3,5-DIIODOPHENYL]PROPANOATE
  • L-Tyrosine, O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-, ethyl ester
  • SCHEMBL9746882
  • DTXSID20708672
  • FT28260
  • DB-257092
  • Ethyl O-(4-hydroxy-3,5-diiodophenyl)-3,5-diiodo-L-tyrosinate

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