Description

Radium-225 (Ra-225) is a high-purity, α-emitting radioisotope of significant therapeutic value in advanced nuclear medicine. Its core value proposition lies in its precise, high-energy alpha particle emissions, which enable targeted cell destruction with minimal damage to surrounding healthy tissue. This product is essential for research institutions, pharmaceutical developers, and specialized medical centers engaged in Targeted Alpha Therapy (TAT) for treating metastatic cancers and other oncological applications.

Application

• Targeted Alpha Therapy (TAT): As a generator for Actinium-225 (Ac-225) or directly conjugated to targeting vectors (e.g., antibodies, peptides) for treating metastatic prostate cancer, leukemia, and other disseminated malignancies.
• Radiopharmaceutical Research & Development: For the synthesis and preclinical/clinical evaluation of novel α-emitting radiopharmaceuticals.
• Nuclear Physics & Chemistry Research: As a source for alpha particles in fundamental studies of nuclear structure, decay chains, and radiochemistry.
• Calibration & Instrumentation: Used as a standard source for calibrating α-particle detectors and spectrometry equipment in analytical and nuclear laboratories.

Basic Information

Product Name	Radium-225
CAS No.	13981-53-8
Molecular Formula	Ra
Molecular Weight	225.0 g/mol (atomic mass)
Synonyms	Ra-225; Radium-225 isotope; Actinium series generator; 225Ra; Radium, isotope of mass 225; Actinium-225 precursor; α-emitting radium isotope; Thorium-229 decay product
EINECS	Contact for details

Quality Control

Our Radium-225 is produced and handled under stringent quality management systems to ensure the highest standards of radionuclidic purity, chemical purity, and specific activity. Each batch is accompanied by a comprehensive Certificate of Analysis (COA) detailing radionuclidic identity, purity, and activity concentration, traceable to national standards. Quality assurance protocols are designed to meet the rigorous demands of pharmaceutical research and clinical applications.

Storage

Preserve in a tightly closed, shielded container, protected from light. Store in a designated, secure, and licensed radioactive materials area at controlled room temperature (15-25°C). Strictly adhere to all local, national, and international regulations for the handling, storage, and disposal of radioactive substances.

Specification

Item	Specification
Appearance	Clear, colorless solution (typically in dilute acid matrix)
Radionuclidic Purity (Ra-225)	≥ 99.0%
Specific Activity	Carrier-free / Theoretical maximum
Chemical Purity	Low ppm levels of metallic impurities
Activity Concentration	Customized to order (e.g., MBq/mL or GBq/mL)
pH	As specified (typically acidic to prevent hydrolysis)

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