Description

3-(Acetylamino)Naphthalene-1,5-Disulphonic Acid is a key naphthalene-based intermediate and dye precursor. This compound matters for its role in synthesizing azo dyes and pigments, providing specific color properties and structural stability. It is primarily needed by manufacturers in the dye and pigment, specialty chemical, and research and development sectors. Its disulphonic acid functionality makes it a versatile building block for further chemical modifications.

Application

• Primary intermediate in the synthesis of acid dyes and direct dyes for textiles.
• Key precursor for manufacturing high-performance pigments used in inks and coatings.
• Building block for fluorescent whitening agents (optical brighteners).
• Intermediate in organic synthesis for pharmaceutical and agrochemical research.
• Used in the production of colorants for paper and leather.
• Acts as a starting material for sulfonated polymers and surfactants.

Basic Information

Product Name	3-(Acetylamino)Naphthalene-1,5-Disulphonic Acid
CAS No.	68189-30-0
Molecular Formula	C₁₂H₁₁NO₇S₂
Molecular Weight	345.35 g/mol
Synonyms	1,5-Naphthalenedisulfonic acid, 3-(acetylamino)-; 3-Acetamido-1,5-naphthalenedisulfonic acid; 3-Acetylamino-1,5-naphthalenedisulphonic acid; 3-Acetamido-1,5-NDSA; N-Acetyl H acid; Acid Black 58 intermediate; Azo dye intermediate 68189-30-0
EINECS	Contact for details

Quality Control

Our 3-(Acetylamino)Naphthalene-1,5-Disulphonic Acid is produced under a stringent quality management system. Each batch undergoes rigorous analytical testing to ensure consistent purity and performance. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical specifications is provided with every shipment to guarantee compliance with your technical requirements.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at room temperature (15-25°C). This material is hygroscopic (moisture-sensitive); ensure containers are kept sealed to prevent absorption of atmospheric moisture. Keep away from strong acids and organic solvents.

Specification

Item	Specification
Appearance	Off-white to light brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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