Description

Copperformazane Blue of 4-Sulphoanthranilic Acid is a specialized coordination complex derived from a formazan dye and anthranilic acid, known for its distinct colorimetric properties. This compound is valued for its role as a sensitive and selective chromogenic reagent in analytical chemistry. It is primarily utilized by research institutions and industrial laboratories requiring precise colorimetric detection and quantification methods.

Application

• Analytical Chemistry Reagent: Used as a chromogenic agent for the spectrophotometric determination of trace metals, particularly copper and other transition metals.
• Biochemical Research: Employed in histochemical staining and as a probe for studying metal-binding sites in biological systems.
• Environmental Testing: Applied in water and soil analysis kits for the detection and measurement of heavy metal contaminants.
• Industrial Process Control: Serves as an indicator in quality control processes for industries where metal ion concentration is critical.
• Dye Intermediate: Acts as a precursor or intermediate in the synthesis of specialized dyes and pigments.
• Educational Laboratories: Used in university and teaching labs to demonstrate principles of complexometric titrations and colorimetric analysis.

Basic Information

Product Name	Copperformazane Blue of 4-Sulphoanthranilic Acid
CAS No.	77840-01-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Copper Formazan Blue; 4-Sulphoanthranilic Acid Copper Formazan Complex; Formazan Blue Copper Salt; C.I. 37155; [Copper, [5-[2-(2-carboxy-5-sulfophenyl)diazenyl]-2-(2-hydroxy-5-sulfophenyl)-3-phenyl-2H-tetrazol-3-ium-4-yl]-, hydroxide, inner salt, sodium salt (1:?)]; Copper complex of 2-(5-sulfo-2-hydroxyphenyl)-5-[2-(2-carboxy-5-sulfophenyl)diazenyl]-3-phenyl-2H-tetrazol-3-ium; Acid Blue 161 (related dye class)
EINECS	Contact for details

Quality Control

Our Copperformazane Blue of 4-Sulphoanthranilic Acid is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and performance consistency suitable for analytical applications. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment.

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 such as strong oxidizing agents.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to reference spectrum
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (Sulfated Ash)	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Partially soluble, forms a colored solution

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