Chemical identity

L-Thyronine

CAS 1596-67-4 · C15H15NO4

01Identity

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

Lazychem IDLC-17966
PubChem CID5461103
NameL-Thyronine
CAS RN1596-67-4
Molecular formulaC15H15NO4
Molecular weight273.28 g/mol
IUPAC name(S)-2-Amino-3-(4-(4-hydroxyphenoxy)phenyl)propanoic acid
InChIKeyKKCIOUWDFWQUBT-AWEZNQCLSA-N

02Structure identifiers

2D structurePubChem CID 5461103
Two-dimensional chemical structure of L-Thyronine, CAS 1596-67-4
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. These statements are calculated from the published structure string.

Defined stereocentres1
Unassigned stereocentres0
Ring count2
Secondary amines0
Tertiary amines0
N-methyl amine sites0
SMILESC1=CC(=CC=C1C[C@@H](C(=O)O)N)OC2=CC=C(C=C2)O
InChINot listed
Formula from structureC15H15NO4
Molecular weight from structure273.28 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

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 1596-67-4 has no exact match in the reviewed published schedule.
SCOMETNO EXACT REVIEWED CAS MATCHCAS 1596-67-4 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

  • 3-(p-[p-Hydroxyphenoxy]phenyl)-L-alanine
  • L-thyronine
  • 1596-67-4
  • thyronine
  • (2S)-2-amino-3-[4-(4-hydroxyphenoxy)phenyl]propanoic acid
  • 4-(4-hydroxyphenoxy)-L-phenylalanine
  • E4QN8G00CV
  • CHEBI:30662
  • DTXSID801318222
  • CHEBI:30661
  • RefChem:151970
  • DTXCID201748009

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