Description

Xanthosine Dihydrate is a nucleoside derivative and a key intermediate in the biosynthesis of purine nucleotides. This compound is of significant value in biochemical research and pharmaceutical development due to its role in nucleotide metabolism and potential as a precursor for antiviral and anticancer agents. It is primarily utilized by research institutions, pharmaceutical manufacturers, and biotechnology companies engaged in metabolic studies, enzyme research, and the synthesis of novel therapeutic compounds.

Application

• Biochemical Research: Used as a standard, substrate, or intermediate in studies of purine metabolism, enzyme kinetics (e.g., purine nucleoside phosphorylase), and nucleotide biosynthesis pathways.
• Pharmaceutical Intermediates: Serves as a critical building block in the synthesis of antiviral drugs, anticancer agents, and other nucleoside-based therapeutics.
• Enzyme Assay Development: Employed in the development and validation of diagnostic assays for enzymes involved in nucleotide salvage and catabolism.
• Microbiology & Cell Culture: Used in media formulation and metabolic studies to investigate bacterial or cellular nucleotide requirements and pathways.
• Reference Standard: Acts as a high-purity analytical reference standard for quality control in pharmaceutical manufacturing and research laboratories.
• Nutritional Science: Investigated for its potential role and effects in metabolic studies related to purine intake and metabolism.

Basic Information

Product Name	Xanthosine Dihydrate
CAS No.	5968-90-1
Molecular Formula	C10H12N4O6 • 2H2O
Molecular Weight	320.26 g/mol (Anhydrous: 284.23)
Synonyms	9-β-D-Ribofuranosylxanthine Dihydrate; Xanthine Riboside Dihydrate; Xanthosine-2H₂O; 3,9-Dihydro-9-β-D-ribofuranosyl-1H-purine-2,6-dione Dihydrate; Xanthine-9-β-D-ribofuranoside Dihydrate; 9-(β-D-Ribofuranosyl)xanthine Dihydrate
EINECS	227-795-8

Quality Control

Our Xanthosine Dihydrate is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing, including identification, purity assay, and impurity profiling, to ensure it meets the high standards required for research and pharmaceutical applications. A Certificate of Analysis (COA) detailing specific results for purity, water content, and related substances is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry place at a controlled room temperature (15-25°C). This product is hygroscopic (moisture-sensitive) and light-sensitive; prolonged exposure to moisture, heat, or light should be avoided to maintain stability and purity.

Specification

Item	Specification
Appearance	White to off-white crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0% (on anhydrous basis)
Water Content (KF)	10.0% - 12.0% (Theoretical for Dihydrate: ~11.24%)
Related Substances (HPLC)	Total impurities ≤ 2.0%
Specific Rotation	Contact for details
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.1%

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