Date published: 2026-4-29

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3-Iodo-L-phenylalanine (CAS 20846-39-3)

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Alternate Names:
m-Iodo-L-phenylalanine
CAS Number:
20846-39-3
Molecular Weight:
291.10
Molecular Formula:
C9H10INO2
For Research Use Only. Not Intended for Diagnostic or Therapeutic Use.
* Refer to Certificate of Analysis for lot specific data.

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3-Iodo-L-Phenylalanine is an amino acid that has garnered significant attention in the scientific community for its potential applications in biomedical research. Derived from phenylalanine, an essential amino acid for protein synthesis and neurotransmitter regulation, 3-Iodo-L-Phenylalanine represents a unique compound with distinct properties, making it a desirable target for investigation. Researchers have utilized 3-Iodo-L-Phenylalanine in a variety of scientific research endeavors, including protein structure and function studies, enzyme kinetics analyses, and drug development investigations. Notably, it serves as useful in protein crystallography, a technique used to determine the three-dimensional structure of proteins. By introducing an iodine atom, researchers can employ 3-Iodo-L-Phenylalanine as a marker to pinpoint specific amino acids within the protein structure, enabling valuable insights into protein functionality and interactions. Biochemically and physiologically, 3-Iodo-L-Phenylalanine exhibits diverse effects. In vitro studies have demonstrated its inhibitory activity on enzymes such as tyrosine hydroxylase and phenylalanine hydroxylase, which are involved in neurotransmitter synthesis. Additionally, 3-Iodo-L-Phenylalanine has exhibited potential anti-cancer properties by inducing apoptosis in cancer cells. These effects may be attributed to its ability to interact with the active sites of enzymes and proteins. The iodine atom forms halogen bonds with nearby amino acids, leading to conformational changes in the protein and influencing its activity. The versatility of 3-Iodo-L-Phenylalanine as a research tool extends to the exploration of enzyme kinetics and protein-ligand interactions, owing to its distinct molecular properties. As a result, this compound holds promise for further advancements in the understanding of biochemical processes and the development of therapeutic interventions. In summary, 3-Iodo-L-Phenylalanine, an amino acid derivative, has captivated the scientific community due to its potential applications in biomedical research. Its utility in protein crystallography, inhibitory effects on key enzymes, potential anti-cancer properties, and ability to influence protein conformation contribute to its significance as a versatile tool for diverse investigations.


3-Iodo-L-phenylalanine (CAS 20846-39-3) References

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  2. Probing the active site tryptophan of Staphylococcus aureus thioredoxin with an analog.  |  Englert, M., et al. 2015. Nucleic Acids Res. 43: 11061-7. PMID: 26582921
  3. Pyrrolysyl-tRNA synthetase, an aminoacyl-tRNA synthetase for genetic code expansion.  |  Crnković, A., et al. 2016. Croat Chem Acta. 89: 163-174. PMID: 28239189
  4. Structural Basis for Genetic-Code Expansion with Bulky Lysine Derivatives by an Engineered Pyrrolysyl-tRNA Synthetase.  |  Yanagisawa, T., et al. 2019. Cell Chem Biol. 26: 936-949.e13. PMID: 31031143
  5. Fully Productive Cell-Free Genetic Code Expansion by Structure-Based Engineering of Methanomethylophilus alvus Pyrrolysyl-tRNA Synthetase.  |  Seki, E., et al. 2020. ACS Synth Biol. 9: 718-732. PMID: 32182048
  6. [Specificity of thyroidal and hepatic microsomal iodotyrosine deiodinase].  |  Dumas, P., et al. 1973. Biochim Biophys Acta. 293: 36-47. PMID: 4685283

Ordering Information

Product NameCatalog #UNITPriceQtyFAVORITES

3-Iodo-L-phenylalanine, 250 mg

sc-471448
250 mg
$300.00

3-Iodo-L-phenylalanine, 1 g

sc-471448A
1 g
$600.00

3-Iodo-L-phenylalanine, 5 g

sc-471448B
5 g
$2400.00