D-Thyroxine contains the iodinated phenolic amino acid derivative scaffold of thyronine, featuring a diphenyl ether core with two iodine substituents and a side chain bearing an amino acid-like functionality. The molecule possesses phenolic hydroxyl groups and an ether-linked aromatic system, and its stereochemistry corresponds to the D configuration as indicated by the name. D-Thyroxine is used in chemical biology and analytical studies that require an iodinated thyroid hormone analog for investigating structure-property relationships, binding assays, or mass spectrometry method development involving halogenated aromatic biomolecules.
CAT No: CP19302
D-Thyroxine is a chiral iodinated amino acid derivative featuring the thyronine core with two iodine atoms on the aromatic rings and a phenolic hydroxyl group, together with a side-chain carboxylic acid and ether-linked phenoxy substituent characteristic of thyroid hormone analogs. The D-configuration at the stereogenic center governs the spatial orientation of the phenyl-ether and carboxylate-bearing framework, influencing binding-mode studies and stereoselective derivatization outcomes. The molecule's strongly electron-withdrawing iodinated aromatic system and phenolic OH enable controlled electrophilic substitutions, oxidative coupling, and conjugation chemistry, while the carboxylic acid can be masked as an activated ester or salt for downstream synthetic handling. As a stereochemically defined intermediate and reference material for iodine-rich amino acid derivatives, D-Thyroxine can participate in peptide-adjacent coupling strategies, analytical labeling workflows, and process-relevant transformations of iodinated aromatic functionality.
1. Thyroid Hormone Analog Studies
D-Thyroxine supports chemical biology and endocrine receptor research by providing a stereodefined, iodinated aromatic amino acid scaffold that can be used to probe structure-dependent recognition. The presence of the phenolic hydroxyl and the carboxylic acid enables derivatization into conjugatable forms, including activated acid derivatives for coupling to linkers or solid supports used in binding assays and mechanistic studies. The two iodine atoms and chiral thyronine framework can be leveraged for spectroscopic tracking and for designing analog series where stereochemistry and halogen substitution patterns are systematically varied. Downstream use includes generating reference standards for receptor-binding experiments, mapping molecular recognition features relevant to amino acid derivative chemistry, and supporting SAR studies that connect stereochemistry to iodinated aromatic interactions.
2. Radiolabeling And Tracer Synthesis
D-Thyroxine is suitable for isotope-labeling and tracer preparation in analytical and research workflows where iodine-rich aromatic structures are amenable to radioisotope incorporation and detection. The iodinated rings provide a chemically meaningful handle for radiochemical studies, and the phenolic hydroxyl and carboxylic acid can be protected or converted to derivatives that maintain tracer stability during handling. The chiral center allows stereospecific comparisons in tracer experiments, supporting studies that distinguish enantiomer- or diastereomer-specific binding and metabolism-like transformations in vitro. Resulting downstream materials include labeled thyroxine analogs for LC-MS quantification, imaging-compatible standards, and calibration reagents used to interpret iodinated amino acid derivative behavior in complex matrices.
3. Peptide Conjugation Linkers
D-Thyroxine can be applied in bioconjugation chemistry where thyroid-hormone-like amino acid derivatives are attached to peptides, proteins, or polymeric carriers for targeted molecular recognition studies. The carboxylic acid functionality can be converted into coupling-ready intermediates, while the phenolic hydroxyl can participate in esterification or ether-forming linkages depending on the chosen protection-group strategy. The rigid, iodinated aromatic core can serve as a recognition element within larger conjugates, and the D-configuration helps define stereochemical orientation relative to the conjugation point. Downstream derivative formation includes thyroxine-bearing peptide conjugates for chemical biology assays, affinity reagent construction for capture-and-detection workflows, and linker-bearing intermediates that integrate amino acid chemistry with peptide science.
4. Protected Amino Acid Derivative Chemistry
D-Thyroxine is appropriate for protected amino acid synthesis and intermediate preparation because its functional groups can be selectively masked to control reactivity during multi-step sequences. The phenolic hydroxyl can be protected to prevent undesired oxidation or side reactions, while the carboxylic acid can be esterified or converted into acid-activated forms to enable controlled coupling to electrophiles or solid phases. The iodinated aromatic rings and chiral center impose stereochemical constraints that can be preserved through orthogonal protection/deprotection strategies, supporting the preparation of well-defined thyroxine-based intermediates. Downstream utility includes manufacturing route design for fine chemical synthesis of iodinated amino acid derivatives, generation of stable storage forms for coupling chemistry, and preparation of standardized building blocks for synthetic organic chemistry programs.
5. Analytical Reference And Method Development
D-Thyroxine functions as an analytical research standard and method-development compound for quantifying iodinated amino acid derivatives by chromatographic and spectrometric techniques. The characteristic iodine content and phenolic hydroxyl enable robust detection signatures, while the defined D-stereochemistry supports stereospecific separation and identification when diastereomeric or enantiomeric mixtures are present. The carboxylic acid can be used to tune ionization behavior through salt formation or derivatization, improving compatibility with LC-MS workflows and enabling calibration across method conditions. Downstream applications include reference material preparation for impurity profiling, stability studies of iodinated aromatic intermediates, and development of analytical standards that support process chemistry intermediate characterization.
6. Industrial Process Chemistry Intermediate
D-Thyroxine can be employed in industrial process chemistry as a stereochemically defined iodinated amino acid derivative feedstock for downstream fine chemical synthesis and specialty chemical production. The combination of carboxylic acid reactivity and phenolic hydroxyl functionality enables conversion into activated intermediates, protected derivatives, or conjugatable forms under controlled protection-group strategies that are compatible with scale-up handling. The iodinated aromatic framework provides a robust chemical motif for generating iodine-rich intermediates used in specialty reagent manufacture, including linker-bearing or detection-compatible derivatives. Broader relevance includes supporting manufacturing-oriented synthesis of chiral, functionalized amino acid derivatives and supplying defined stereochemical inputs for applied synthetic methodology in industrial chemical production.
1. Peptides as Active Ingredients: A Challenge for Cosmeceutical Industry
2. Implications of ligand-receptor binding kinetics on GLP-1R signalling
4. Cell-based adhesion assays for isolation of snake venom’s integrin antagonists
5. C-Peptide replacement therapy and sensory nerve function in type 1 diabetic neuropathy
If you have any peptide synthesis requirement in mind, please do not hesitate to contact us at . We will endeavor to provide highly satisfying products and services.
Creative Peptides is a trusted CDMO partner specializing in high-quality peptide synthesis, conjugation, and manufacturing under strict cGMP compliance. With advanced technology platforms and a team of experienced scientists, we deliver tailored peptide solutions to support drug discovery, clinical development, and cosmetic innovation worldwide.
From custom peptide synthesis to complex peptide-drug conjugates, we provide flexible, end-to-end services designed to accelerate timelines and ensure regulatory excellence. Our commitment to quality, reliability, and innovation has made us a preferred partner across the pharmaceutical, biotechnology, and personal care industries.
Read More