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Home > Active Pharmaceutical Ingredients > Diagnostic Agents (Find 20 items)

Diagnostic Agents

Iopromide

(73334-07-3)
Iopromide, also known as Uvixine and Iopramide, is a non-ionic hypotonic contrast agent that was launched in Switzerland in 1986. This product can reduce the adverse reactions caused by high osmotic pressure. The solution is neutral, so it will not affect the charged protein and cell membrane structure, nor will it interfere with the electrolyte balance in the body, so it has little effect on red blood cells, endothelial cells and body fluids. Its advantages are: directly used for angiography, b

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Iopamidol

(60166-93-0)
Iopamidol, also known as iodoisopeptidol, iodopentaol, iopermitol, iopira, iodopydo, and iodomethasone, is a non-ionic water-soluble contrast agent, which is used for imaging diagnostics. Its chemical structure is The amide compound of triiodoisophthalic acid derivative has low toxicity to blood vessel wall and neurotoxicity, good local and systemic tolerance, low osmotic pressure, low viscosity, good contrast, stable injection, and very little deiodination in the body. It is suitable for Myelog

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Iophendylate

(99-79-6)
It is suitable for spinal cord subarachnoid angiography to diagnose spinal cord compression, spinal cord cavity obstruction, spinal cord tumors, spinal arthropathy, intervertebral disc displacement, etc. It can also be used for ventriculography, amnography, lymphangiography. Emulsion injection can be used for fistula angiography and postoperative "T" tube cholangiography.

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Iodide

(20461-54-5)
It is suitable for trachea, bronchus, uterine fallopian tube and other cavity angiography.

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Indigo carmine

(860-22-0)
Colorant for nylon, surgical sutures, foods and ingested drugs.As a reagent for functional kidney tests, for detection of nitrates, chlorates and in testing milk.

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Indocyanine green

(3599-32-4)
In infrared photography; in preparation of Wratten filters. Diagnostic drug for liver function determination, IR laser dye.

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Iodixanol

(92339-11-2)
Non-ionic X-ray contrast agent. X-ray contrast agent. For adult cardiovascular angiography, cerebral angiography (conventional and i.a.DSA), peripheral arteriography (conventional and i.a.DSA), abdominal angiography (i.a.DSA), urography, venography and CT-enhanced examination.

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Ioversol

(87771-40-2)
Nonionic, low osmolality, radiographic contrast agent. Diagnostic aid (radiopaque medium). Ioverol is mainly used for various vascular radiography examinations, including: cerebral angiography, peripheral arteriography, visceral artery, renal artery and aortic angiography. Cardiovascular angiography includes coronary angiography, arterial and venous digital subtraction blood vessels Radiography etc. Venous excretion urography and enhanced CT scan of the head and body.

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Ioxitalamic acid

(28179-44-4)
A substituted 2,4,6-triiodobenzoic acid, an excellent contrast media for ventriculography, radiculography, lumbar myelography and x-rays of the cardiovascular system.

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Iobitridol

(136949-58-1)
Diagnostic aid (radiopaque medium).

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Diagnostic agents refer to diagnostic reagents prepared using principles or methods such as immunology, microbiology, and molecular biology, and used in vitro for the diagnosis, detection, and epidemiological investigation of human diseases. Diagnostic agents can be divided into two categories: in vivo diagnostic reagents and in vitro diagnostic reagents. Except for the in vivo diagnostic reagents used for diagnosis, such as old tuberculin, brucellin, and Sickle toxin, most of them are in vitro diagnostic products. "Circulatory System Drugs" on ECHEMI includes organ function test agent, medical imaging drugs, and mainly supplies APIs for such drugs.

Frequently Asked Questions

What are Diagnostic Agents and how are they used in medical imaging?

Diagnostic Agents are pharmaceutical substances used to enhance the visibility of internal structures during medical imaging procedures such as MRI, CT scans, X-rays, and ultrasound. These agents help clinicians detect, diagnose, and monitor diseases by improving contrast in images. Common types include iodinated contrast media for CT, gadolinium-based agents for MRI, and radiopharmaceuticals for nuclear medicine. Their safe and effective use is critical for accurate diagnosis and patient outcomes.

What factors should be considered when selecting a Diagnostic Agent supplier?

When selecting a Diagnostic Agent supplier, consider the following key criteria:1. Regulatory compliance—ensure the supplier meets FDA, EMA, or other relevant authority standards.2. Quality assurance systems, including GMP certification and robust documentation.3. Product portfolio breadth and availability of specialized or niche agents.4. Supply chain reliability and ability to meet demand consistently.5. Technical support and post-sale services, such as stability data and handling guidance.Choosing a reputable supplier ensures product integrity and regulatory safety.

Are there different types of Diagnostic Agents for various imaging modalities?

Yes, Diagnostic Agents are specifically formulated for different imaging modalities. For example:- Iodine-based contrast agents are used in X-ray and CT imaging to highlight blood vessels and organs.- Gadolinium chelates serve as contrast enhancers in MRI scans.- Technetium-99m and other radioisotopes are employed in SPECT and PET scans for functional imaging.- Microbubble agents improve visualization in ultrasound diagnostics.Selecting the correct agent type is essential for image clarity and diagnostic accuracy.

What are the safety considerations when using Diagnostic Agents?

Safety considerations for Diagnostic Agents include assessing patient allergies (especially to iodine or gadolinium), renal function (as some agents are nephrotoxic), and pregnancy status. Adverse reactions—ranging from mild (nausea, rash) to severe (anaphylaxis)—must be monitored. Proper dosing, hydration protocols, and adherence to clinical guidelines minimize risks. Healthcare providers should always review contraindications and follow institutional safety protocols before administration.

How do advancements in Diagnostic Agents improve patient care?

Recent advancements in Diagnostic Agents—such as targeted molecular imaging probes, biodegradable contrast agents, and reduced-toxicity formulations—enhance early disease detection, improve image resolution, and lower side effect risks. Innovations like theranostic agents combine diagnosis and therapy, enabling personalized treatment plans. These developments lead to more precise diagnoses, better monitoring of treatment response, and ultimately, improved patient outcomes across oncology, cardiology, and neurology.

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