Description

2-[(2-Amino-5-Hydroxy-7-Sulpho-1-Naphthyl)Azo]-5-Nitrobenzoic Acid CAS NO 61827-73-4 is a specialized azo dye intermediate characterized by its complex naphthalene-based structure with multiple functional groups. This compound is valued for its role as a key precursor in the synthesis of high-performance dyes and pigments, offering excellent color fastness and specific spectral properties. It is primarily required by manufacturers in the textile, ink, and specialty chemical industries for producing vibrant and durable colorants.

Application

• Primary intermediate for the synthesis of azo dyes and pigments used in textile coloration.
• Key component in manufacturing specialty inks, including those for security printing and high-resolution digital applications.
• Used in the production of colorants for plastics and polymers to achieve specific hues and stability.
• Potential precursor for biological stains and histological dyes in laboratory and diagnostic applications.
• Intermediate in research and development of functional dyes for optical and electronic devices.
• Used in the formulation of industrial coatings requiring specific color properties and durability.

Basic Information

Item	Detail
Product Name	2-[(2-Amino-5-Hydroxy-7-Sulpho-1-Naphthyl)Azo]-5-Nitrobenzoic Acid
CAS No.	61827-73-4
Molecular Formula	C₁₇H₁₁N₅O₈S
Molecular Weight	453.36 g/mol
Synonyms	5-Nitro-2-[(2-amino-5-hydroxy-7-sulfo-1-naphthyl)azo]benzoic acid; Benzoic acid, 5-nitro-2-[(2-amino-5-hydroxy-7-sulfo-1-naphthyl)azo]-; C.I. 18050; Acid Dye Intermediate; Azo Dye Intermediate 61827-73-4; 2-[(2-Amino-5-hydroxy-7-sulfonaphth-1-yl)azo]-5-nitrobenzoic acid
EINECS	Contact for details

Quality Control

Our production of 2-[(2-Amino-5-Hydroxy-7-Sulpho-1-Naphthyl)Azo]-5-Nitrobenzoic Acid adheres to stringent quality management protocols. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and reliability for your synthesis processes. Certificates of Analysis (COA) documenting all critical parameters 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 nature, the container must be kept tightly sealed to prevent moisture absorption, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 3.0%

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