Description

4'-((1-Hydroxy-4-Sulfo-2-Naphthalenyl)Azo)-5,5'-Dimethyl-4-((4- ((Phenylsulfonyl)Oxy)Phenyl)Azo)- (1,1'-Biphenyl)-2,3'-Disulfonate Trisodium Salt is a high-purity, multi-sulfonated azo dye intermediate known for its complex molecular structure and functional versatility. This compound is critical for synthesizing specialized dyes and pigments that require excellent water solubility and specific chromophoric properties. It is primarily utilized by manufacturers in the textile, ink, and specialty chemical industries seeking to develop advanced colorants with enhanced performance characteristics.

Application

• Primary Intermediate for Reactive Dyes: Used in the synthesis of high-value reactive dyes for cotton and other cellulose fibers, providing strong covalent bonds for excellent wash-fastness.
• Specialty Pigment Manufacturing: Serves as a key precursor for creating complex organic pigments used in high-performance inks, coatings, and plastics.
• Functional Dye Synthesis: Employed in the production of functional dyes for non-textile applications, including sensitizers for dye-sensitized solar cells (DSSCs) and analytical reagents.
• Research & Development: A valuable building block in academic and industrial R&D for exploring new chromophores and advanced materials chemistry.

Basic Information

Product Name	4'-((1-Hydroxy-4-Sulfo-2-Naphthalenyl)Azo)-5,5'-Dimethyl-4-((4- ((Phenylsulfonyl)Oxy)Phenyl)Azo)- (1,1'-Biphenyl)-2,3'-Disulfonate Trisodium Salt
CAS No.	73385-00-9
Molecular Formula	C41H28N4Na3O14S4
Molecular Weight	1010.89 g/mol
Synonyms	Trisodium 4'-[(1-hydroxy-4-sulfo-2-naphthyl)azo]-5,5'-dimethyl-4-[(4-(phenylsulfonyloxy)phenyl)azo]biphenyl-2,3'-disulfonate; Reactive Dye Intermediate; Azo Dye Intermediate; C.I. Reactive Orange 16 Intermediate (related); Multisulfonated Azo Compound; 73385-00-9; Trisodium Salt of a Disulfonated Bisazo Dye
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Each lot is analyzed using advanced techniques including HPLC and spectrophotometry to confirm identity and assay. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications is provided with every shipment to support your quality assurance processes.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept sealed when not in use to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Moisture Content (KF)	≤ 5.0%
Sulfated Ash	≤ 20.0%
Solubility (in Water)	Freely soluble

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