Description

Fast Blue Bb Salt is a high-purity diazonium salt primarily used as a coupling agent in the synthesis of azo dyes and pigments. Its consistent reactivity and purity are critical for achieving vibrant, stable colors in demanding industrial applications. This compound is essential for manufacturers in the textile, ink, and specialty chemical industries seeking reliable performance in colorant production.

Application

• Primary Coupling Agent for the synthesis of high-performance azo dyes and pigments.
• Textile Dyeing, providing a key intermediate for colorants used on natural and synthetic fibers.
• Ink Manufacturing, particularly for specialty printing inks requiring specific color properties.
• Biological Staining, used in histology and cytology for specific tissue staining protocols.
• Research & Development of novel colorants and functional materials in academic and industrial labs.
• Polymer Colorant production, where it is incorporated to impart color to plastics and coatings.

Basic Information

Product Name	Fast Blue Bb Salt
CAS No.	5486-84-0
Molecular Formula	C17H18ClN3O3Zn
Molecular Weight	415.17 g/mol
Synonyms	Fast Blue BB Salt; 4-Benzoylamino-2,5-diethoxybenzenediazonium Chloride Zinc Chloride Double Salt; 4-Benzoylamino-2,5-diethoxybenzenediazonium Chloride Zinc Chloride; Diazo Fast Blue Bb; C.I. 37235; Azoic Diazo Component 20; Fast Blue B Salt; Variamine Blue B Salt
EINECS	226-822-1

Quality Control

Our Fast Blue Bb Salt is manufactured under strict quality control protocols to ensure batch-to-batch consistency and high purity. We provide comprehensive Certificates of Analysis (COA) with each shipment, detailing key parameters such as assay, impurity profile, and solubility. Our quality management system is designed to meet the rigorous standards required by industrial dye and pigment manufacturers.

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). This material is light-sensitive (store away from light) and easily oxidized (store under inert atmosphere). Keep away from heat, sparks, and open flame. Separate from incompatible materials such as strong bases and reducing agents.

Specification

Item	Specification
Appearance	Light beige to tan powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 98.0%
Solubility (in DMF)	Clear solution
Loss on Drying	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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