Description

2-(4-Aminosulphophenyl)-6-Methylbenzothiazole-7-Sulphonic Acid is a high-purity, specialized organic intermediate featuring a benzothiazole core with dual sulphonic acid functionality. This compound matters for its role as a critical building block in the synthesis of advanced dyes, fluorescent whitening agents, and optical brighteners. Industrial manufacturers and R&D laboratories in the textile, paper, and polymer industries require this material for developing products with enhanced brightness and color properties. Its specific structure allows for fine-tuning of photophysical characteristics in the final applications.

Application

• Primary Intermediate for Fluorescent Whitening Agents (FWAs): A key precursor in the manufacture of high-performance optical brighteners used in detergents, textiles, and paper.
• Dye and Pigment Synthesis: Serves as a crucial building block for producing specific benzothiazole-derived dyes, particularly acid dyes and reactive dyes for synthetic fibers like nylon and polyester.
• Polymer Additives: Used in the development of specialty polymer additives where light-absorbing or fluorescent properties are desired.
• Analytical Reagent and Research Chemical: Employed in chemical research and as a standard or reagent in analytical methods due to its distinct chromophoric structure.
• Photographic Industry: Can be utilized in the synthesis of certain photographic sensitizers and chemicals.
• Liquid Crystal Display (LCD) Materials: Investigated as a potential intermediate for electronic chemicals and functional materials in display technologies.

Basic Information

Product Name	2-(4-Aminosulphophenyl)-6-Methylbenzothiazole-7-Sulphonic Acid
CAS No.	95892-16-3
Molecular Formula	C14H12N2O6S3
Molecular Weight	424.45 g/mol
Synonyms	2-(4-Aminosulfophenyl)-6-methyl-1,3-benzothiazole-7-sulfonic acid; 2-(4-Aminosulfophenyl)-6-methylbenzothiazole-7-sulfonic acid; 6-Methyl-2-(4-sulfamoylphenyl)benzothiazole-7-sulfonic acid; Tinopal SOP; FWA 184; Optical Brightener Intermediate; Benzothiazolesulfonic acid derivative; 2-(p-Aminosulfophenyl)-6-methylbenzothiazole-7-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 2-(4-Aminosulphophenyl)-6-Methylbenzothiazole-7-Sulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. The material is subjected to rigorous analytical testing, including HPLC for assay and impurity profiling, to meet the exacting standards required for fine chemical synthesis. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and related substance tests 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 tightly sealed after opening to prevent absorption of atmospheric moisture, which may affect product quality and handling properties.

Specification

Item	Specification
Appearance	Light yellow to yellow powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Related Substances (HPLC)	Total impurities ≤ 2.0% Any single impurity ≤ 0.5%
Sulfated Ash	≤ 0.5%

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