Description

4-(Acetoacetylamino)Benzenesulfonic Acid Sodium Salt is a key organic intermediate and coupling agent, valued for its reactive acetoacetyl group and water-solubility imparted by the sulfonate moiety. This compound is essential for synthesizing high-performance pigments, dyes, and functional polymers where precise chemical attachment and chromophore development are required. It is primarily utilized by manufacturers in the colorant, specialty chemical, and advanced material industries.

Application

• Primary Intermediate for Pigments and Dyes: A crucial building block in the synthesis of high-quality azo pigments and reactive dyes, contributing to color strength and stability.
• Coupling Agent in Chemical Synthesis: Used in diazo coupling reactions to create complex organic molecules with specific functional properties.
• Functional Additive for Polymers: Can be incorporated into polymer chains to introduce sulfonate groups, enhancing hydrophilicity or ionic character.
• Research & Development Chemical: Serves as a specialized reagent in pharmaceutical and agrochemical R&D for constructing novel molecular architectures.
• Surface Modification Agent: Potential use in modifying surface properties of materials due to its dual functional groups.

Basic Information

Product Name	4-(Acetoacetylamino)Benzenesulfonic Acid Sodium Salt
CAS No.	63503-98-0
Molecular Formula	C10H10NNaO5S
Molecular Weight	279.24 g/mol
Synonyms	4-(Acetoacetamido)benzenesulfonic acid sodium salt; Sodium 4-(acetoacetamido)benzenesulfonate; Benzenesulfonic acid, 4-(acetoacetamido)-, sodium salt; AAESA sodium salt; Acetoacet-p-aminobenzenesulfonic acid sodium salt; Coupling component K; 4-Acetoacetaminobenzenesulfonate sodium
EINECS	Contact for details

Quality Control

Our production of 4-(Acetoacetylamino)Benzenesulfonic Acid Sodium Salt adheres to stringent quality management protocols. Every batch is analytically verified against established specifications to ensure consistent purity, reactivity, and performance. A comprehensive Certificate of Analysis (COA) detailing identity, assay, impurity profile, and physical parameters is provided with each shipment to support your quality assurance and regulatory needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed to prevent absorption of atmospheric moisture, which can affect product quality and handling properties.

Specification

Item	Specification
Appearance	White to off-white powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Water Content (KF)	≤ 2.0%
pH (5% solution)	6.0 - 8.0
Heavy Metals (as Pb)	≤ 20 ppm

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