Description

7-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid Disodium Salt is a high-purity, water-soluble azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure and consistent performance in specialized synthesis and diagnostic applications. It is primarily required by manufacturers in the dye and pigment industry, as well as by research and quality control laboratories for use as a chromogenic agent or a standard reference material.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of specific acid dyes and pigments, particularly for textiles, leather, and paper.
• Analytical Chemistry Reagent: Used as a chromogenic agent or a complexometric indicator in various spectrophotometric and titrimetric analytical methods.
• Biological Staining: Potential application as a specialized stain in histology or microbiology for microscopic analysis.
• Chemical Research: Serves as a building block or a model compound in organic synthesis and photochemical studies.
• Ink Formulation: Can be utilized in the development of specialized inks requiring specific color properties and solubility.
• Laboratory Standard: Employed as a certified reference material (CRM) for instrument calibration and method validation in quality control labs.

Basic Information

Product Name	7-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid Disodium Salt
CAS No.	6330-82-1
Molecular Formula	C24H18N4Na2O7S2
Molecular Weight	584.53 g/mol
Synonyms	Acid Orange 61; C.I. 18965; 7-[(4-[(4-Aminobenzoyl)amino]-2-methylphenyl)azo]-1,3-naphthalenedisulfonic acid disodium salt; 1,3-Naphthalenedisulfonic acid, 7-[[4-[(4-aminobenzoyl)amino]-2-methylphenyl]azo]-, disodium salt; Disodium 7-[[4-[(4-aminobenzoyl)amino]-2-methylphenyl]azo]naphthalene-1,3-disulfonate; C.I. Acid Orange 61; Azo dye intermediate 6330-82-1; 4-Amino-N-[4-[(7-sulfo-1,3-naphthylene)diazenyl]-3-methylphenyl]benzamide disodium sulfonate
EINECS	Contact for details

Quality Control

Our 7-[[4-[(4-Aminobenzoyl)Amino]-2-Methylphenyl]Azo]-1,3-Naphthalenedisulfonic Acid Disodium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for use as an intermediate and reagent. Certificates of Analysis (COA) detailing all test results are available upon request.

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 absorption of atmospheric moisture, which can affect product quality and stability.

Specification

Item	Specification
Appearance	Orange to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in Water)	Clear, orange solution

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