Description

Trisodium 2,4-Diamino-3,5-Bis-[4-(2-Sulfonatoethoxy)Sulfonyl)Phenylazo]Benzenesulfonate is a high-purity, water-soluble azo dye intermediate with a complex, multi-sulfonated structure designed for superior performance. This compound is engineered to provide exceptional color strength, stability, and solubility in aqueous systems, making it a critical component for demanding applications. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking reliable and consistent dye precursors.

Application

• Textile Dyeing: As a key intermediate for synthesizing reactive and direct dyes for cotton, wool, and nylon fibers.
• Inkjet Inks: Used in the formulation of high-quality, color-fast inks for industrial and commercial printing.
• Paper Coloring: Employed in the production of specialty papers requiring vibrant and stable coloration.
• Leather Dyeing: Provides deep, uniform shades in the dyeing process for various leather goods.
• Biological Staining: Potential use as a staining agent in histological and microbiological applications due to its azo chromophore.
• Research & Development: Serves as a building block for novel dye and pigment synthesis in chemical R&D laboratories.

Basic Information

Product Name	Trisodium 2,4-Diamino-3,5-Bis-[4-(2-Sulfonatoethoxy)Sulfonyl)Phenylazo]Benzenesulfonate
CAS No.	182926-43-8
Molecular Formula	C30H24N8Na3O19S6
Molecular Weight	1086.06 g/mol (approx.)
Synonyms	2,4-Diamino-3,5-bis[4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]benzenesulfonic acid trisodium salt; Trisodium 2,4-diamino-3,5-bis[4-[(2-sulfonatoethoxy)sulfonyl]phenyl]azo]benzenesulfonate; Reactive Dye Intermediate 182926-43-8; Multi-sulfonated azo dye precursor; C.I. Reactive Orange 107 intermediate (related); Benzenesulfonic acid, 2,4-diamino-3,5-bis[4-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]-, trisodium salt
EINECS	Contact for details

Quality Control

Our production of Trisodium 2,4-Diamino-3,5-Bis-[4-(2-Sulfonatoethoxy)Sulfonyl)Phenylazo]Benzenesulfonate adheres to stringent quality management protocols to ensure batch-to-batch consistency and purity. Every lot is analyzed against rigorous in-house specifications, which typically include parameters for assay (HPLC), impurity profile, solubility, and color value. A comprehensive Certificate of Analysis (COA) is provided with each shipment to guarantee compliance with your technical requirements.

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 material is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content	≤ 5.0%
Solubility in Water	Clear solution at 1% w/v
Heavy Metals (as Pb)	≤ 20 ppm
pH (1% Solution)	6.0 - 8.0

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