3,3',5'-Triiodo-DL-thyronine is a halogenated, non-proteinogenic thyronine derivative bearing three iodine substituents on the aromatic rings and a thyronine-type core with an amino acid-like scaffold. The molecule contains a ring-bound amino functionality and a carboxyl group characteristic of thyronine analogues, and the "DL" designation indicates a racemic mixture of stereochemical forms when applicable to the chiral center(s) present in the structure. In biochemical and analytical research, this iodinated amino acid derivative is used as a defined structural analog for studying structure-property relationships, supporting analytical method development, and enabling chemical labeling or comparative assays that rely on controlled iodine substitution patterns.
CAT No: CP19503
3,3',5'-Triiodo-DL-thyronine is a halogenated thyronine derivative used as a thyroid hormone structural analog in chemical biology, analytical chemistry, and pharmaceutical intermediate development. The DL designation indicates a racemic mixture, which is commonly selected when the goal is to obtain a defined mass/structure for reference measurements or synthetic downstream chemistry rather than stereospecific biological studies. With three iodine atoms on the thyronine scaffold, the compound provides strong mass spectrometric detectability and robust incorporation into iodine-bearing synthetic sequences.
1. Analytical Reference Calibration
3,3',5'-Triiodo-DL-thyronine is frequently used to prepare analytical reference materials for LC-MS workflows and related thyroid-hormone profiling methods, where iodine-rich thyronine scaffolds produce distinctive ionization and fragmentation patterns. Researchers in analytical chemistry and bioanalytical method development use it to support method verification, retention-time matching, and identity confirmation for iodine-substituted thyronine species, including studies that compare structural variants or evaluate extraction and cleanup performance. The racemic (DL) form is often selected for calibration and qualification contexts where the analytical readout is driven primarily by molecular mass and structural features rather than enantiomer-specific behavior.
2. Thyronine Derivative Synthesis
3,3',5'-Triiodo-DL-thyronine serves as a practical starting material for synthesizing iodine-containing thyronine derivatives and related intermediates used in medicinal chemistry and specialty chemical manufacturing. Medicinal chemistry groups and process development teams rely on this scaffold to access downstream analogs that preserve the iodinated aromatic character while varying functional groups for SAR (structure-activity relationship) exploration or formulation-relevant chemical space. Because the molecule already contains multiple iodine substituents on the thyronine framework, it is commonly chosen when the target series requires retention of the iodinated pattern for subsequent coupling, functional-group interconversion, or derivatization steps.
3. Chemical Biology Probe Building
3,3',5'-Triiodo-DL-thyronine is used in chemical biology and receptor-binding assay development as a structural probe component for thyroid-hormone-related studies and competitive binding formats. Research groups employ iodinated thyronine scaffolds to create labeled or derivatized analogs that can be tracked by mass spectrometry or used as competing ligands to interrogate binding behavior in vitro. The DL mixture is often acceptable in these workflows when the experimental design emphasizes the iodinated thyronine motif and mass-based detection/quantification rather than stereoselective binding discrimination.
4. Iodinated Scaffold Intermediate
3,3',5'-Triiodo-DL-thyronine is also positioned as an iodine-rich chiral scaffold intermediate for industrial and research-grade synthesis programs that require a stable, well-defined thyronine core. Specialty chemical manufacturers and custom synthesis providers use it to build libraries of iodinated aromatic intermediates where the presence of multiple iodine atoms is a key structural requirement for downstream transformations. In these development workflows, consistent starting material identity and the distinctive iodine content are valuable for controlling chemical composition across batches and for enabling straightforward analytical verification during intermediate handling.
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