Description

Antipyrylazo Iii is a specialized azo dye derivative known for its strong chelating properties and chromogenic behavior with metal ions. This compound is valued for its high sensitivity and selectivity in analytical chemistry, serving as a critical reagent for the spectrophotometric determination of various cations. It is primarily utilized by research institutions, analytical laboratories, and industrial quality control departments involved in environmental monitoring, metallurgy, and pharmaceutical analysis.

Application

• Spectrophotometric Reagent: Used for the sensitive detection and quantification of metal ions such as calcium, magnesium, and rare earth elements in solution.
• Analytical Chemistry Research: Serves as a key chromogenic agent in developing new analytical methods and assays in academic and industrial R&D settings.
• Environmental Testing: Employed in water and soil analysis to measure trace metal contamination and assess environmental quality.
• Metallurgical Analysis: Applied in the quality control of alloys and ores for precise metal content determination.
• Biochemical Studies: Utilized in biochemical assays to study metal-protein interactions and enzymatic activities involving metal cofactors.
• Pharmaceutical QC: Acts as a reagent in purity testing and impurity profiling where metal ion content is critical.

Basic Information

Product Name	Antipyrylazo Iii
CAS No.	14918-39-9
Molecular Formula	C₂₂H₁₈N₄O₈S₂
Molecular Weight	530.53 g/mol
Synonyms	Antipyrylazo III; APIII; 2,7-Bis[(4-antipyryl)azo]-1,8-dihydroxynaphthalene-3,6-disulfonic Acid; 1,8-Dihydroxy-2,7-bis[(2,3-dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)azo]naphthalene-3,6-disulfonic Acid; APAZ III; Antipyrylazo-3; Chromogenic Agent APIII; Bis(4-antipyrylazo)-1,8-dihydroxynaphthalene-3,6-disulfonate
EINECS	Contact for details

Quality Control

Our Antipyrylazo Iii is produced under strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation via spectroscopic methods. A Certificate of Analysis (COA) detailing all test results is provided with every shipment to support your quality assurance and regulatory compliance needs.

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). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Purity (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition	≤ 0.5%
Absorbance (λ max)	Conforms to reference
Solubility	Soluble in water, alkaline solutions

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