Description

Benzenesulfonic Acid, 2-[(4-Aminophenyl)Amino]-5-Nitro-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salts is a complex, high-purity synthetic dye intermediate. This compound is valued for its role in producing high-performance, colorfast dyes and pigments with specific optical properties. It is primarily required by manufacturers in the specialty dyes, textile chemicals, and advanced material coatings sectors seeking consistent quality for their formulations.

Application

• Primary Intermediate for Azo Dyes: Serves as a critical building block in the synthesis of high-value azo dyes for textiles, leather, and paper.
• Specialty Pigment Manufacturing: Used in the production of complex organic pigments for inks, coatings, and plastics requiring enhanced color strength and stability.
• Functional Dye Synthesis: Applicable in creating dyes for non-textile uses, such as in imaging technologies or as biological stains.
• Research & Development: Employed in chemical R&D labs for developing novel chromophores and studying dye-polymer interactions.
• Fine Chemical Production: Acts as a precursor in multi-step syntheses for other specialty chemicals in the performance materials industry.

Basic Information

Product Name	Benzenesulfonic Acid, 2-[(4-Aminophenyl)Amino]-5-Nitro-, Diazotized, Coupled With 5,5'-[(5-Hydroxy-1,3-Phenylene)Bis(Oxy)]Bis[1,3-Benzenediol], Sodium Salts
CAS No.	97675-33-7
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Mordant Black 17 (Sodium Salt); Mordant Black 17, Sodium Salt; Acid Chrome Dark Blue; 2-[(4-Aminophenyl)amino]-5-nitrobenzenesulfonic acid, diazotized, coupled with 5,5'-[(5-hydroxy-1,3-phenylene)bis(oxy)]bis[1,3-benzenediol], sodium salts; Chromogen Black ET; Azo Mordant Dye Intermediate
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to strict quality management systems to ensure batch-to-batch consistency and purity. Each lot undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation. A detailed Certificate of Analysis (COA) documenting all relevant specifications is provided with every shipment to support your quality assurance protocols.

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) and light-sensitive; ensure containers are kept sealed to minimize exposure to atmospheric moisture and light.

Specification

Item	Specification
Appearance	Dark colored powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Loss on Drying	Max. 5.0%
Heavy Metals (as Pb)	Max. 20 ppm
Solubility	Soluble in water

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