Description

Difetarsone is an organoarsenic compound with significant applications in specialized chemical synthesis and research. This compound is valued for its role as a key intermediate in the development of specific pharmaceuticals and as a reagent in organic chemistry. It is primarily utilized by research institutions, pharmaceutical development laboratories, and fine chemical manufacturers requiring high-purity building blocks for complex molecular structures.

Application

• Pharmaceutical Intermediate: Acts as a critical precursor in the synthesis of specific active pharmaceutical ingredients (APIs) and investigational compounds.
• Research & Development: Serves as a valuable reagent in academic and industrial research for studying organometallic reactions and arsenic chemistry.
• Fine Chemical Synthesis: Used in the multi-step production of complex organic molecules where its specific arsenic-containing structure is required.
• Veterinary Pharmaceutical Development: Historically investigated for potential applications in veterinary medicine, though current use is primarily in research contexts.
• Chemical Reference Standard: Employed as an analytical standard in quality control laboratories for method development and verification.

Basic Information

Product Name	Difetarsone
CAS No.	3639-19-8
Molecular Formula	C8H10AsNO5
Molecular Weight	275.10 g/mol
Synonyms	4-Carbamoyl-2-[(4-hydroxyphenyl)azo]benzenearsonic Acid; 4-Carbamoyl-2-[(4-hydroxyphenyl)diazenyl]benzenearsonic Acid; Difetarson; Difetarsonum; Ro 2-1160; Arsaectin; Arsonic acid, [4-[(4-hydroxyphenyl)azo]-3-carbamoylphenyl]-
EINECS	222-884-6

Quality Control

Our Difetarsone is manufactured under strict quality management systems to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including identification, assay, and impurity profiling via modern techniques like HPLC. A detailed Certificate of Analysis (COA) is provided with every shipment, confirming compliance with agreed specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after each use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Yellow to orange-yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%
Related Substances (HPLC)	Individual impurity ≤ 0.5%; Total impurities ≤ 2.0%

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