Description

Brilliant Congo Blue is a synthetic diazo dye known for its intense blue color and strong affinity for various substrates. This compound is valued for its role as a versatile colorant and a critical biological stain in diagnostic and research applications. It is primarily utilized by manufacturers and laboratories in the textile, histology, and analytical chemistry sectors.

Application

• As a biological stain in histology and microscopy for tissue differentiation.
• As a colorimetric indicator and pH indicator in analytical chemistry procedures.
• As a dye intermediate for the synthesis of other specialized colorants.
• In textile dyeing processes for protein-based fibers like silk and wool.
• For educational and research purposes in laboratory settings.
• In the preparation of specialized inks and pigments.

Basic Information

Product Name	Brilliant Congo Blue
CAS No.	2610-15-3
Molecular Formula	C32H22N6Na2O6S2
Molecular Weight	696.67 g/mol
Synonyms	Congo Red; Direct Red 28; C.I. 22120; Cotton Red B; Cotton Red C; Direct Red Y; Cosmos Red; Paper Red 4B; Aminonaphthalene Red
EINECS	220-027-7

Quality Control

Our Brilliant Congo Blue is produced under a rigorous quality management system. Each batch is tested to ensure it meets precise specifications for identity, purity, and performance. A comprehensive Certificate of Analysis (COA) detailing all test results is provided with every shipment to guarantee traceability and compliance.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area at a controlled room temperature (15-25°C). Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Brownish-red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 85%
Loss on Drying	≤ 5.0%
Water Solubility	Conforms
pH (1% Solution)	7.0 - 9.0

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