Description

Astatine CAS NO 7440-68-8 is a rare and highly radioactive halogen element, representing a critical material for advanced scientific and medical research. Its scarcity and unique decay properties make it a valuable asset for targeted α-particle therapy (TAT) in oncology and specialized radiopharmaceutical development. This element is essential for research institutions, nuclear medicine facilities, and advanced material science laboratories exploring novel applications in radiation chemistry and diagnostics.

Application

• Targeted Alpha Therapy (TAT): As a potent α-emitter, astatine-211 is a leading candidate for the treatment of micro-metastases and disseminated cancers.
• Radiopharmaceutical Research: Used in the development and preclinical testing of novel radioisotope-labeled compounds for diagnostic and therapeutic purposes.
• Nuclear Physics & Chemistry Studies: Serves as a tracer and subject for investigating the chemical properties of heavy halogens and nuclear reaction mechanisms.
• Material Science: Exploration of its behavior in semiconductor doping and the study of radiation effects on materials at the atomic scale.
• Educational Reference Standards: Provides essential reference material for advanced university-level courses in nuclear chemistry and radiochemistry.

Basic Information

Product Name	Astatine
CAS No.	7440-68-8
Molecular Formula	At
Molecular Weight	210 g/mol (most stable isotope)
Synonyms	Astatine-211; Element 85; Radioastatine; α-Astatine; Halogen-85; Ununseptium (historical, for isotope 117); Eka-Iodine
EINECS	231-148-6

Quality Control

Our astatine is produced and handled under strict radiochemical purity protocols. Each batch is characterized for isotopic purity (primarily At-211), radionuclidic purity, and specific activity. Certificates of Analysis (COA) detailing radioactivity concentration, radiochemical purity (via HPLC or TLC), and absence of significant radioactive impurities are provided. All handling and quality control procedures adhere to GMP principles for radiopharmaceutical precursors.

Storage

Preserve in a tightly closed container, protected from light. Due to its radioactive nature and chemical properties as a strong oxidizer, it must be stored in a dedicated, shielded facility under an inert atmosphere. Storage temperature and specific activity-dependent handling protocols are provided with the material safety data sheet (MSDS).

Specification

Item	Specification
Appearance (Solution)	Colorless to pale yellow clear solution
Isotopic Purity (At-211)	> 99.9%
Radionuclidic Purity	> 99.5%
Radiochemical Purity (HPLC)	> 95%
Specific Activity	Contact for details
Solvent (if applicable)	Specified inert solvent (e.g., Dry methanol, specific buffer)
pH (if in aqueous solution)	As specified per order (typically 4.0 - 9.0)

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