Description

Cuprate(4-), [2-[[[[2-Hydroxy-3-Sulfo-5-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]Phenylmethyl]Azo]-4-Sulfobenzoato(6-)]-, Sodium is a complex, water-soluble copper azo dye intermediate. This compound is valued for its ability to form stable, colored complexes, making it a critical precursor in the synthesis of high-performance dyes and pigments. It is primarily needed by manufacturers in the textile, leather, and specialty chemical industries seeking to produce vibrant and durable colorants.

Application

• Textile Dyeing: As a key intermediate for producing reactive and direct dyes for cotton, wool, and synthetic fibers.
• Leather Finishing: Used in the synthesis of dyes for imparting deep, uniform colors to leather goods.
• Ink Manufacturing: Serves as a precursor for pigments used in industrial inks and toners.
• Paper Coloring: Employed in the production of dyes for specialty and decorative papers.
• Analytical Reagents: Can be utilized as a complexing agent in certain colorimetric analytical methods.
• Research & Development: Acts as a building block for novel metallo-organic compounds and functional materials in chemical research.

Basic Information

Item	Details
Product Name	Cuprate(4-), [2-[[[[2-Hydroxy-3-Sulfo-5-[[2-(Sulfooxy)Ethyl]Sulfonyl]Phenyl]Azo]Phenylmethyl]Azo]-4-Sulfobenzoato(6-)]-, Sodium
CAS No.	90341-71-2
Molecular Formula	C28H14CuN4O16S4Na4 (or related salt form)
Molecular Weight	Contact for details
Synonyms	Sodium Copper Azo Dye Complex; CI Reactive Blue 250 (related); Copper complex of sulfonated azo dye; Tetrasodium [2-[[[[2-Hydroxy-3-sulfo-5-[(2-sulfooxyethyl)sulfonyl]phenyl]azo]phenylmethyl]azo]-4-sulfobenzoato(6-)]cuprate(4-); Azo copper complex dye intermediate; Sulfonated copper azo compound; Metallized azo dye precursor.
EINECS	Contact for details

Quality Control

Our production of this dye intermediate adheres to stringent quality control protocols to ensure batch-to-batch consistency and performance. Quality is verified through advanced analytical techniques including HPLC, UV-Vis spectroscopy, and metal content analysis. Certificates of Analysis (COA) documenting purity, identity, and key physical parameters are available for every shipment upon request.

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); therefore, the container must be kept tightly sealed to prevent absorption of atmospheric moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder or solid
Identification (IR)	Conforms to structure
Assay (HPLC)	Min. 95%
Copper (Cu) Content	Within theoretical range
Moisture (KF Titration)	Max. 5.0%
Solubility (in Water)	Completely soluble
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.