Description

Iodine-131 is a critical radioisotope of iodine, essential for diagnostic and therapeutic applications in nuclear medicine. Its targeted beta and gamma emissions make it a powerful tool for precise medical imaging and effective treatment of specific conditions. This high-purity material is primarily utilized by pharmaceutical manufacturers, radiopharmaceutical compounding facilities, and advanced medical research institutions. We supply Iodine-131 CAS NO 10043-66-0 with stringent quality control to ensure reliability for sensitive end-use applications.

Application

• Therapeutic Radiopharmaceuticals: Primary active ingredient in targeted radiotherapy for thyroid disorders, including hyperthyroidism and differentiated thyroid cancer.
• Diagnostic Imaging: Used in nuclear medicine for diagnostic procedures, such as thyroid uptake scans and whole-body imaging for metastasis detection.
• Pharmaceutical Manufacturing: Serves as the key radioactive component in the synthesis of finished-dose capsules and liquid formulations.
• Medical Research: Employed in preclinical and clinical research for developing new radiopharmaceuticals and studying metabolic pathways.
• Nuclear Medicine Compounding: Used by hospital radiopharmacies and specialized compounding centers to prepare patient-specific doses.
• Industrial Tracer Studies: Applied in non-medical research for leak detection and flow dynamics in closed systems, subject to strict regulatory oversight.

Basic Information

Product Name	Iodine-131
CAS No.	10043-66-0
Molecular Formula	¹³¹I
Molecular Weight	130.906 g/mol (Atomic Mass)
Synonyms	Radioiodine-131; I-131; ¹³¹I; Iodine 131; Iodine, isotope of mass 131; Iodine-131 radioisotope; Radiopharmaceutical Grade Iodine; Na¹³¹I (when in sodium iodide form)
EINECS	Contact for details

Quality Control

Our Iodine-131 is produced and tested under a strict quality management system to meet the exacting standards of the radiopharmaceutical industry. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing critical parameters such as radionuclidic purity, radiochemical purity, specific activity, and pH. We adhere to current Good Manufacturing Practice (cGMP) principles, and our quality protocols are designed to ensure compliance with global pharmacopoeial expectations for radioactive materials. Certificates of Analysis are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Due to its radioactive nature and specific sensitivity, Iodine-131 must be stored in appropriate shielded containers (e.g., lead pots) in a designated, secure, and controlled-access area. Storage conditions must comply with all local and international regulations for radioactive materials. The product is strictly light-sensitive (protect from all light exposure).

Specification

Item	Specification
Appearance (Solution)	Clear, colorless to slightly yellow solution
Radionuclidic Identity (Gamma Spectroscopy)	Complies
Radionuclidic Purity	≥ 99.9%
Radiochemical Purity (HPLC/TLC)	≥ 95.0%
Specific Activity	Contact for details
pH	7.0 - 11.0
Carrier Content	≤ 0.1 µg Iodide per MBq

Note: Specifications can be tailored. Please contact us for the detailed technical data sheet of a specific grade.