Description

3-Acetamidonaphthalene-1,5-Disulphonic Acid, Sodium Salt is a high-purity, water-soluble organic intermediate derived from naphthalene disulfonic acid. This compound matters for its role as a versatile building block in the synthesis of specialized dyes, pigments, and fluorescent markers. It is primarily needed by manufacturers in the fine chemical, specialty dye, and advanced material research sectors seeking reliable, high-quality intermediates for complex synthesis.

Application

• Dye and Pigment Intermediate: A key precursor in the synthesis of acid dyes, reactive dyes, and other naphthalene-based colorants.
• Fluorescent Probe Synthesis: Used in the development of fluorescent markers and tags for biological imaging and diagnostic applications.
• Chemical Research & Development: Serves as a specialized building block for novel organic compounds in academic and industrial R&D labs.
• Photographic Chemicals: Can be utilized in the formulation of certain light-sensitive chemicals for photographic and imaging processes.
• Textile Auxiliaries: Employed in the production of specialty chemicals used in textile processing and finishing.

Basic Information

Product Name	3-Acetamidonaphthalene-1,5-Disulphonic Acid, Sodium Salt
CAS No.	94232-05-0
Molecular Formula	C₁₂H₁₁NNa₂O₇S₂
Molecular Weight	415.33 g/mol
Synonyms	3-Acetamido-1,5-naphthalenedisulfonic acid disodium salt; 1,5-Naphthalenedisulfonic acid, 3-acetamido-, sodium salt (1:2); 3-Acetylamino-1,5-naphthalenedisulfonic acid disodium salt; N-Acetyl-1,5-naphthalenediamine-3,7-disulfonic acid disodium salt; Acid Yellow 7 intermediate; C.I. 56205 intermediate; Contact for EINECS details.

Quality Control

Our 3-Acetamidonaphthalene-1,5-Disulphonic Acid, Sodium 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 customer specifications. A comprehensive Certificate of Analysis (COA) detailing all test results 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Off-white to light yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Residue on Ignition (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.