Description

2-[4-[4-[(1-Acetylacetonyl)Azo]-2-Sulphostyryl]-3-Sulphophenyl]-2H-Naphtho[1,2-D]Triazole-5-Sulphonic Acid is a high-purity, water-soluble anionic dye intermediate characterized by its complex triazole and azo-based molecular structure. This compound is a critical building block for synthesizing advanced fluorescent whitening agents (FWAs) and optical brighteners, providing exceptional light stability and strong affinity to substrates. It is essential for manufacturers in the textile, paper, plastics, and detergent industries seeking to enhance the brightness and whiteness of their products under UV light.

Application

• Primary Intermediate for Fluorescent Whitening Agents (FWAs): Serves as a key precursor in the synthesis of high-performance optical brighteners for synthetic fibers like polyester and nylon.
• Textile Industry: Used in the production of brightening agents applied to fabrics, yarns, and threads to achieve a brilliant white appearance.
• Paper Manufacturing: Incorporated into paper coating formulations to increase the perceived brightness and whiteness of high-quality papers.
• Detergent and Soap Formulations: A vital component for manufacturing laundry brighteners that make fabrics appear cleaner and whiter.
• Plastics and Polymers: Utilized to produce brightening masterbatches for engineering plastics, films, and molded articles.
• Advanced Material Research: Acts as a functional dye molecule in research for light-harvesting applications, sensors, or specialty coatings.

Basic Information

Product Name	2-[4-[4-[(1-Acetylacetonyl)Azo]-2-Sulphostyryl]-3-Sulphophenyl]-2H-Naphtho[1,2-D]Triazole-5-Sulphonic Acid
CAS No.	24681-18-3
Molecular Formula	C30H23N5O9S3
Molecular Weight	701.72 g/mol
Synonyms	Benzenesulfonic acid, 2-[4-[4-[(1-acetyl-2-oxopropyl)azo]-2-sulfo-1-ethenylphenyl]-3-sulfophenyl]-2H-naphtho[1,2-d]triazol-5-yl]-; 2H-Naphtho[1,2-d]triazole-5-sulfonic acid, 2-[4-[4-[(1-acetyl-2-oxopropyl)azo]-2-sulfo-1-ethenylphenyl]-3-sulfophenyl]-; Fluorescent Brightener Intermediate 24681-18-3; Optical Brightener Precursor; Azo-triazole sulfonic acid dye intermediate; FWA Intermediate S-TA; Brightener 24681
EINECS	Contact for details

Quality Control

Our production of 2-[4-[4-[(1-Acetylacetonyl)Azo]-2-Sulphostyryl]-3-Sulphophenyl]-2H-Naphtho[1,2-D]Triazole-5-Sulphonic Acid adheres to a stringent quality management system. Every batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistent performance and batch-to-batch reliability. Certificates of Analysis (COA) detailing purity, impurity profile, and physical characteristics are provided with each shipment.

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. Keep away from strong acids and incompatible organic solvents.

Specification

Item	Specification
Appearance	Yellow to orange-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Water Content (KF)	≤ 5.0%
Sulfated Ash	≤ 1.0%
Solubility (1% in Water)	Clear, yellow solution

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