Description

2-Aminobenzoic Acid-4-Hydroxyethyl Sulfone Sulfate Ester is a specialized reactive intermediate of significant importance in the synthesis of high-performance dyes and pigments. Its core value lies in its ability to form covalent bonds with textile fibers, resulting in exceptional wash and light fastness properties. This compound is essential for manufacturers in the textile, leather, and specialty chemical industries seeking to produce vibrant, durable colorants.

Application

• Reactive Dye Intermediate: A key building block for synthesizing high-quality reactive dyes used in cotton, wool, and nylon dyeing and printing.
• Textile Colorant Production: Used in the manufacture of dyes that offer superior color yield, brightness, and fastness to washing and light.
• Leather Dyeing: Employed in the production of dyes for achieving deep, uniform, and durable colors on leather goods.
• Specialty Pigment Synthesis: Serves as a precursor in the creation of advanced organic pigments for inks, coatings, and plastics.
• Research & Development: Utilized in chemical R&D for exploring novel chromophores and functional materials.
• Fine Chemical Synthesis: Acts as an intermediate in the multi-step synthesis of complex, value-added chemical products.

Basic Information

Product Name	2-Aminobenzoic Acid-4-Hydroxyethyl Sulfone Sulfate Ester
CAS No.	26169-41-5
Molecular Formula	C9H11NO7S2
Molecular Weight	309.32 g/mol
Synonyms	4-(2-Sulfooxyethylsulfonyl)anthranilic Acid; 2-Amino-4-(2-hydroxyethylsulfonylsulfato)benzoic Acid; Benzoic acid, 2-amino-4-[(2-sulfooxyethyl)sulfonyl]-; Reactive Dye Intermediate KE-4B Acid; Anthranilic Acid-4-Hydroxyethyl Sulfone Sulfate Ester; 4-(β-Sulfatoethylsulfonyl)anthranilic Acid; KE Acid
EINECS	Contact for details

Quality Control

Our 2-Aminobenzoic Acid-4-Hydroxyethyl Sulfone Sulfate Ester is produced under a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for reactive dye synthesis. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical characteristics is provided with each shipment to guarantee consistency and performance.

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 product is hygroscopic (moisture-sensitive); the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect purity and reactivity.

Specification

Item	Specification
Appearance	Off-white to light yellow crystalline powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Moisture (KF Titration)	≤ 2.0%
Water Solubility	Freely soluble
Heavy Metals (as Pb)	≤ 20 ppm

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