Description

Fast Blue Bb is a high-purity diazo salt primarily used as a coupling component in the synthesis of azo dyes and pigments. This compound is valued for its ability to produce vibrant and stable colorants, particularly in the blue to violet spectrum. It is an essential intermediate for manufacturers in the textile, ink, and specialty chemical industries seeking consistent quality for their color production processes.

Application

• Azo Dye & Pigment Synthesis: A key coupling agent for producing a wide range of blue and violet azo colorants.
• Textile Dyeing: Used in the manufacture of dyes for coloring natural and synthetic fibers.
• Printing Inks: Serves as an intermediate for pigments used in industrial and packaging inks.
• Plastics & Polymers Coloring: Employed in the synthesis of pigments for mass coloration of plastics.
• Research & Development: A valuable chemical intermediate in organic synthesis and color chemistry R&D.
• Specialty Coatings: Used to develop colorants for paints and functional coatings.

Basic Information

Item	Detail
Product Name	Fast Blue Bb
CAS No.	120-00-3
Molecular Formula	C₁₇H₁₈N₃O₃⁺
Molecular Weight	312.34 g/mol
Synonyms	Fast Blue B Base; 4-Benzoylamino-2,5-diethoxybenzenediazonium chloride; 4-Benzamido-2,5-diethoxybenzenediazonium chloride; C.I. 37235; Azoic Diazo Component 20; Fast Blue BB Salt; Daito Blue Salt BB; Variamine Blue B Base
EINECS	204-357-3

Quality Control

Our Fast Blue Bb is produced under a strict quality management system to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including assay by titration and identification by FT-IR. A Certificate of Analysis (COA) detailing purity, moisture content, and other critical parameters is provided with every shipment to guarantee compliance with your specifications.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated place at a controlled room temperature (15-25°C). This material is hygroscopic (moisture-sensitive) and light-sensitive; containers must be kept tightly sealed after opening to minimize exposure to atmospheric moisture and light to maintain stability.

Specification

Item	Specification
Appearance	Light beige to tan powder
Identification (IR)	Conforms to structure
Assay (Titration)	≥ 98.0 %
Moisture (KF)	≤ 2.0 %
Insoluble Matter	≤ 0.5 %

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