Description

1-Ethyl Trihydrogen 2-[[4'-[[1-Amino-8-Hydroxy-3,6-Disulphonato-7-[(4-Sulphonatophenyl)Azo]-2-Naphthyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]Acetoacetate, Sodium Salt is a high-purity, water-soluble azo dye intermediate characterized by its complex poly-sulfonated structure. This compound matters for its role as a critical precursor in the synthesis of high-value, colorfast dyes and pigments, particularly for demanding applications requiring excellent solubility and chromophore stability. Industrial manufacturers in the textile, ink, and specialty coatings sectors rely on this intermediate to produce vibrant, durable colors.

Application

• Primary Intermediate for Reactive Dyes: Synthesis of high-grade reactive dyes for cotton, wool, and nylon fibers, providing excellent wash and light fastness.
• Production of Acid Dyes: Manufacturing of acid dyes used for silk, leather, and paper coloring.
• Specialty Ink Formulations: Key component in the production of inks for jet printing, packaging, and security applications.
• Functional Pigment Synthesis: Used in creating pigments for plastics, paints, and coatings where specific color properties and dispersion are required.
• Research & Development: Serves as a building block in chemical research for developing new chromophores and functional materials.
• Biological Staining: Potential use in the synthesis of histological stains for microscopy, given its azo dye structure.

Basic Information

Product Name	1-Ethyl Trihydrogen 2-[[4'-[[1-Amino-8-Hydroxy-3,6-Disulphonato-7-[(4-Sulphonatophenyl)Azo]-2-Naphthyl]Azo][1,1'-Biphenyl]-4-Yl]Azo]Acetoacetate, Sodium Salt
CAS No.	85750-01-2
Molecular Formula	C40H28N6O16S4Na4 (Contact for exact stoichiometry)
Molecular Weight	Contact for details
Synonyms	Acetoacetic acid, 2-[[4'-[[1-amino-8-hydroxy-3,6-disulfo-7-[(4-sulfophenyl)azo]-2-naphthyl]azo][1,1'-biphenyl]-4-yl]azo]-, 1-ethyl ester, sodium salt; C.I. Reactive Red 198 (related intermediate); Trisodium 1-ethyl 2-[[4'-[[1-amino-8-hydroxy-3,6-disulphonato-7-[(4-sulphonatophenyl)azo]naphthalen-2-yl]azo]biphenyl-4-yl]azo]acetoacetate; Poly-sulfonated azo dye intermediate; Reactive dye intermediate 85750-01-2; Water-soluble azo compound intermediate; Sodium 1-ethyl 2-((4'-((1-amino-8-hydroxy-3,6-disulfo-7-((4-sulfophenyl)diazenyl)naphthalen-2-yl)diazenyl)-[1,1'-biphenyl]-4-yl)diazenyl)acetoacetate
EINECS	Contact for details

Quality Control

Our production of this advanced dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and purity for your synthesis processes. Quality is verified through modern analytical techniques including HPLC, UV-Vis spectroscopy, and titration methods. A comprehensive Certificate of Analysis (COA) detailing purity, impurity profile, and physical specifications 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, well-ventilated area at a controlled 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 can affect product performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Dark brown to reddish-brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Water Content (KF)	Max. 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	Max. 20 ppm
Solubility (in Water)	Freely soluble

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