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Arsenazo III (KASN-100)

Arsenazo III (KASN-100)

High-sensitivity chromogenic reagent used for the spectrophotometric determination of uranium, thorium, and particularly calcium in clinical diagnostics.

  • Ref : KASN-100
  • CAS : 1668-00-4
  • Category : Chemicals
 MSDS    Certificate of Analysis (COA)

Formula: C22?H18?As2?O14?N4?S2?

Molecular Weight: 776.37 g/mol

Appearance: Deep brown powder

Assay (HPLC): ≥85%

Maximum Absorption (λmax?): 535 - 543 nm

Specific Extinction: 300 - 450

Sulfated Ash: ≤0.2%

Loss on Drying: <8%

Trace Metals:

    Calcium (Ca): ≤100 ppm

    Iron (Fe): ≤100 ppm

    Copper (Cu): ≤50 ppm

Storage: Store at Room Temperature

Applications: Primarily used as a metal indicator in clinical chemistry for the determination of calcium levels in serum and urine. It forms a stable colored complex with metal ions, allowing for precise spectrophotometric measurement.

Safety Highlights (MSDS Summary):

    Acute Tox. 3: Toxic if swallowed (H301) or inhaled (H331).

    Aquatic Chronic 1: Very toxic to aquatic life with long-lasting effects (H410).

    Handling: Wear protective gloves, clothing, and eye protection. Avoid release to the environment.

Quality Assurance: Batch-specific Certificate of Analysis (CoA) is available. Manufactured and tested according to Regulation (EC) No. 1272/2008 standards.