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5-Amino-2,4,6-triiodoisophthalic acid is a highly specialized organic iodine compound with a highly structured molecular structure. The core of its molecule is a benzene ring, and at the 1,3,5 positions, it contains two carboxylic acid groups and an amino group. The remaining 2,4,6 positions are completely replaced by three iodine atoms. This dense iodine substitution endows the molecule with extremely high radioactivity density and molecular weight. The most distinctive feature of this compound stems from its iodine atom with a high atomic number, making it an excellent X-ray absorber. It is mainly used in the medical field as a key synthetic precursor or structural template for non-ionic contrast agents. By further functionalizing and modifying its carboxyl and amino groups, a series of low osmotic pressure and highly water-soluble contrast agent molecules can be derived, which are used for vascular imaging, urinary system imaging, and other computer tomography (CT) diagnostic procedures to enhance soft tissue contrast. Additionally, its strong electron-withdrawing property and large steric hindrance effect also enable it to be used as a special building block in organic synthesis for the construction of functional materials. This substance typically appears as a white to pale yellow solid and should be stored in a dark place in a cool environment. Due to its complex structure and the high-risk halogenation reactions involved in its synthesis, it is usually provided by professional chemical suppliers for research and industrial development.
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Chemical Formula |
C8H4I3NO4 |
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Exact Mass |
559 |
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Molecular Weight |
559 |
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m/z |
559 (100.0%), 560 (8.7%) |
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Elemental Analysis |
C, 17.19; H, 0.72; I, 68.13; N, 2.51; O, 11.45 |
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5-Amino-2,4,6-triiodoisophthalic acid (ATIPA) is an organic compound with a unique chemical structure. The amino group and three iodine atoms in its structure endow it with special biological activity and potential medical applications. In the biomedical field, ATIPA mainly plays a key role as an organic synthesis intermediate and pharmaceutical intermediate, especially in the preparation process of contrast agents.
ATIPA as a key starting material for contrast agents
Contrast agents are essential drugs in medical imaging diagnosis, which can enhance image contrast and enable doctors to observe the anatomical structures and pathological changes inside the human body more clearly. ATIPA, as an important organic synthetic intermediate, plays a crucial role in the preparation of contrast agents.
(1) Enhanced image contrast:
Contrast agents enhance image contrast by altering the signal intensity of tissues or organs during imaging examinations. The iodine atoms in ATIPA have the characteristics of high density and strong absorption of X-rays, which enables contrast agents containing ATIPA to significantly improve the clarity of images in X-ray examinations.
(2) Improving diagnostic accuracy:
As a key starting material for contrast agents, ATIPA's amino and iodine atoms in its structure can bind with other chemical groups to form contrast agents with specific properties and functions. These contrast agents can provide more detailed and accurate anatomical and pathological information in medical imaging diagnosis, helping doctors make more accurate diagnoses.
(3) Reduce side effects:
Traditional contrast agents may have side effects such as allergic reactions. As the starting material for the new generation of contrast agents, ATIPA can reduce the incidence of allergic reactions and improve patient safety and comfort by optimizing its chemical structure and improving its production process.
Application of ATIPA in drug synthesis
ATIPA not only plays a crucial role in the preparation of contrast agents, but also has important application value in the synthesis of other drugs.
(1) Antitumor drugs: The iodine atoms and amino groups in the structure of ATIPA can bind with other active groups to form compounds with anti-tumor activity. These compounds can inhibit the growth and spread of tumor cells, thereby prolonging the survival of patients.
(2) Antibacterial drugs: The amino and iodine atoms of ATIPA can bind with other antibacterial groups to form compounds with broad-spectrum antibacterial activity. These compounds can inhibit the growth and reproduction of bacteria, thereby treating various infectious diseases.
(3) Antiviral drugs: ATIPA can also serve as a precursor compound for antiviral drugs. Through chemical modification and modification, it can be transformed into compounds with antiviral activity for the treatment of various viral infectious diseases.
Application of ATIPA in Biomedical Research
ATIPA also has important application value in biomedical research, especially in molecular imaging, drug screening, and disease model construction.
(1) Molecular imaging:
Iodine atoms and amino groups in ATIPA can serve as molecular probes for use in molecular imaging techniques. By binding these probes to specific biomolecules such as proteins, nucleic acids, etc., real-time monitoring of the distribution and function of biomolecules in cells and tissues can be achieved.
(2) Drug screening:
ATIPA can serve as a model compound for drug screening. By modifying and modifying its structure, a series of compounds with different biological activities can be synthesized. These compounds can be used for drug screening and pharmacological research, providing strong support for new drug development.
(3) Disease model construction:
ATIPA can also be used to construct disease models. By combining it with other biomolecules, the pathogenesis and pathological process of diseases can be simulated. These models can be used for disease research and exploration of treatment methods, providing important references for medical research and clinical practice.
The Development Prospects of ATIPA in the Biomedical Field
With the continuous development and progress of biomedical technology, the application prospects of ATIPA in the biomedical field are becoming increasingly broad.
(1) Research and development of new contrast agents:
With the continuous development of medical imaging technology, the performance requirements for contrast agents are also increasing. As a key starting material for contrast agents, ATIPA's amino and iodine atoms in its structure provide abundant possibilities for the development of new contrast agents. By optimizing the chemical structure and improving the production process, new contrast agents with higher resolution, lower incidence of allergic reactions, and longer duration can be developed.
(2) The development of targeted drugs:
Targeted drugs have been one of the hotspots in the field of drug development in recent years. As an important intermediate in drug synthesis, ATIPA's amino and iodine atoms in its structure can be used to construct the molecular skeleton of targeted drugs. By binding with other active groups, drug molecules with specific targeting abilities can be formed, achieving effective treatment of diseases.
(3) Innovation in Biomedical Imaging Technology:
Biomedical imaging technology is one of the important means in medical research and clinical practice. As a probe compound in molecular imaging technology, ATIPA's iodine atoms and amino groups in its structure provide new ideas and methods for innovation in biomedical imaging technology. By combining these probes with specific biomolecules, real-time monitoring of the distribution and function of biomolecules in cells and tissues can be achieved, providing strong support for medical research and clinical practice.
Case Study of ATIPA's Biomedical Applications
In order to better understand the specific applications of 5-Amino-2,4,6-triiodoisophthalic acid in biomedical fields, the following practical cases are listed for analysis.
Case 1: Development of a new type of contrast agent
Background: Traditional X-ray contrast agents have side effects such as allergic reactions and nephrotoxicity, and in some cases, the image clarity is insufficient. Therefore, the development of new contrast agents has become an urgent need in the field of medical imaging.
Method: Researchers used ATIPA as the starting material and synthesized a novel non-ionic X-ray contrast agent through chemical modification and modification. This contrast agent has a lower incidence of allergic reactions and higher image clarity.
Result: The new contrast agent has demonstrated good safety and efficacy in clinical trials. Compared with traditional contrast agents, this contrast agent can provide clearer and more accurate imaging information, helping doctors make more accurate diagnoses.
Conclusion: ATIPA, as a starting material for new contrast agents, provides new ideas and methods for the development of medical imaging. By optimizing the chemical structure and improving the production process, new contrast agents with higher performance can be developed.
Case 2: Development of Targeted Drugs
Background: Tumors are one of the important diseases that threaten human health. Traditional chemotherapy drugs have problems such as high toxicity and poor efficacy. Therefore, the development of targeted drugs has become one of the hotspots in the field of tumor therapy.
Method: Researchers utilized ATIPA as an important intermediate for drug synthesis and synthesized a targeted anti-tumor drug by binding with other active groups. This drug can specifically recognize and inhibit the growth and spread of tumor cells.
Result: Targeted drugs have shown good anti-tumor activity in clinical trials. Compared with traditional chemotherapy drugs, this drug can significantly reduce the growth rate of tumor cells and prolong the survival of patients.
Conclusion: ATIPA, as an important intermediate for targeted drugs, provides new ideas and methods for the development of tumor therapy. By combining with other active groups, anti-tumor drugs with specific targeting abilities can be developed, achieving effective treatment of tumors.
Case 3: Innovation in Biomedical Imaging Technology
Background: Biomedical imaging technology is one of the important means in medical research and clinical practice. Traditional imaging techniques suffer from issues such as low resolution and poor sensitivity. Therefore, innovative biomedical imaging technology has become an important requirement for medical research and clinical practice.
Method: Researchers utilized ATIPA as a probe compound in molecular imaging technology, and constructed a novel biomedical imaging technique by binding it to specific biomolecules. This technology can achieve real-time monitoring of the distribution and function of biomolecules in cells and tissues.
Result: The new biomedical imaging technology demonstrated good resolution and sensitivity in clinical trials. This technology can clearly display the location and distribution of biomolecules in cells and tissues, providing strong support for medical research and clinical practice.
Conclusion: ATIPA, as a probe compound in molecular imaging technology, provides new ideas and methods for the innovation of biomedical imaging technology. By combining it with specific biomolecules, biomedical imaging techniques with higher resolution and sensitivity can be constructed, providing strong support for medical research and clinical practice.
The method of synthesizing 5-Amino-2,4,6-triiodoisophthalic acid in the laboratory usually involves multiple steps. The following is one possible synthesis route and its corresponding chemical equation:
Starting materials:
Prepare the required starting materials, such as 2,4,6-triaiodoisophthalic acid, ammonia, sulfuric acid, etc.
Esterification reaction:
Mix 2,4,6-triaiodoisophthalic acid with an appropriate amount of ammonia, heat to an appropriate temperature, and carry out esterification reaction. During the reaction process, ammonia water acts as a base and reacts with acidic 2,4,6-triaiodoisophthalic acid to generate corresponding esters.
C8H3I3O4 + 2NH3 → C8H3I3O4NH2 + 2H2O
Hydrolysis reaction:
Dissolve the esterification product obtained in the previous step in dilute sulfuric acid, heat it to an appropriate temperature, and carry out hydrolysis reaction. Hydrolysis reaction converts ester groups into carboxyl groups.
C8H3I3O4NH2 + H2SO4 → C8H3I3O4NH4SO4
Nitrification reaction:
Under acidic sulfuric acid conditions, the product obtained in the previous step is nitrated with nitric acid to convert carboxyl groups into nitro groups.
C8H3I3O4NH4SO4 + HNO3 → C8H3I3O5NH4SO4
Reduction reaction:
Use appropriate reducing agents (such as iron powder, hydrogen gas, etc.) to reduce nitro groups to amino groups.
C8H3I3O5NH4SO4 + Fe → C8H3I3O5NH2SO4
Desulfonation reaction:
Under alkaline conditions, heat to remove sulfonic acid groups and obtain the target product.
C8H3I3O5NH2+NaOH → C8H2I3O2NH2
Post processing:
Obtain the final product through appropriate post-processing steps such as washing, drying, etc.
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