Description

Fast Blue Bb Salt is a stabilized diazonium salt primarily used as a coupling agent in the synthesis of azo dyes and pigments. This compound is valued for its ability to produce intense, lightfast blue and violet shades in various materials. It is a critical intermediate for manufacturers in the textile, ink, and specialty chemical industries requiring high-performance colorants.

Application

• Primary coupling component for the production of azo dyes and pigments, particularly for blues and violets.
• Key intermediate in manufacturing textile dyes for cotton, nylon, and other synthetic fibers.
• Used in the formulation of printing inks for packaging and commercial printing applications.
• Employed in the synthesis of colorants for plastics and polymeric materials.
• Acts as a reagent in histological staining for biological and medical research.
• Utilized in the development of functional dyes for optical and electronic applications.

Basic Information

Product Name	Fast Blue Bb Salt
CAS No.	15710-69-7
Molecular Formula	C14H14ClN3O4Zn
Molecular Weight	397.11 g/mol
Synonyms	Fast Blue BB Salt; 4-Benzoylamino-2,5-diethoxybenzenediazonium Zinc Chloride; 4-Benzamido-2,5-diethoxybenzenediazonium Zinc Chloride; C.I. 37235; Diazo Fast Blue BB; Azoic Diazo Component 20; Fast Blue B Salt; Variamine Blue B Salt
EINECS	239-828-6

Quality Control

Our Fast Blue Bb Salt is manufactured under strict quality management systems. Each batch undergoes comprehensive analytical testing to ensure consistent purity, reactivity, and performance. Certificates of Analysis (COA) documenting assay, impurity profile, and physical specifications are available upon request 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; containers must be kept tightly sealed when not in use to prevent decomposition.

Specification

Item	Specification
Appearance	Light beige to tan powder
Identification (IR)	Conforms to structure
Assay (Diazonium Content)	≥ 95.0%
Water Content (KF)	≤ 3.0%
Insoluble Matter	≤ 0.5%
Coupling Efficiency	≥ 98.0%

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