Description

5-[(4-Amino-5-Methoxy-2-Tolyl)Azo]-3-Sulphosalicylic Acid is a specialized azo dye intermediate and analytical reagent known for its distinct chromophoric properties. This compound is valued for its ability to form stable, colored complexes with various metal ions, making it a critical component in high-precision applications. It is primarily sought by manufacturers and research laboratories in the analytical chemistry, dye and pigment synthesis, and metallurgy sectors for its consistent performance and purity.

Application

• Analytical Reagent: Used as a colorimetric indicator and complexing agent for the detection and quantification of specific metal ions (e.g., aluminum, iron) in laboratory analysis and industrial process control.
• Dye and Pigment Intermediate: Serves as a key precursor in the synthesis of azo dyes and pigments, particularly for applications requiring specific shades and lightfastness properties.
• Metallurgical Analysis: Employed in the analysis of ores, alloys, and plating baths to determine metal content through complexometric titration or spectrophotometric methods.
• Research & Development: Utilized in chemical research for studying coordination chemistry, developing new sensor materials, and creating specialized staining agents.
• Textile Industry: Can be used in the development of specialized dyes for synthetic or natural fibers where specific color properties are required.

Basic Information

Product Name	5-[(4-Amino-5-Methoxy-2-Tolyl)Azo]-3-Sulphosalicylic Acid
CAS No.	85720-90-7
Molecular Formula	C15H15N3O6S
Molecular Weight	365.36 g/mol
Synonyms	5-[(4-Amino-5-methoxy-2-methylphenyl)azo]-2-hydroxy-3-sulfobenzoic acid; 3-Sulphosalicylic acid, 5-[(4-amino-5-methoxy-2-tolyl)azo]-; Acid Chrome Blue K; Chrome Azurol S related compound; Aluminon related azo dye; C.I. Mordant Blue 29 intermediate; 5-[(4-Amino-5-methoxy-o-tolyl)azo]-2-hydroxybenzoic acid-3-sulfonic acid; Azo sulfosalicylic acid derivative
EINECS	Contact for details

Quality Control

Our production of 5-[(4-Amino-5-Methoxy-2-Tolyl)Azo]-3-Sulphosalicylic Acid adheres to stringent quality management protocols. Every batch undergoes comprehensive analytical testing, including HPLC for purity, IR for identification, and titration for assay confirmation, to ensure it meets precise customer specifications. Certificates of Analysis (COA) detailing all test results are provided and can be tailored to support compliance with various research and industrial standards.

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 sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (1% in NaOH)	Clear, orange solution

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