Description

Sudan Red 7B is a synthetic diazo dye belonging to the Sudan dye family, identified by CAS NO 6368-72-5. It is valued for its strong, stable red color and is primarily used as a colorant in non-food industrial applications. This product is essential for manufacturers in the plastics, wax, and hydrocarbon solvent industries seeking a vivid and durable red pigment.

Application

• Coloring of hydrocarbon-based industrial products such as fuels, lubricants, and waxes.
• Pigment for plastics and synthetic polymers to achieve a consistent red hue.
• Staining agent in biological and histological research for lipid detection.
• Colorant for printing inks and dyes used on non-food contact materials.
• Marker or tracer in petroleum and solvent-based systems.
• Industrial color standard for quality control in manufacturing processes.

Basic Information

Product Name	Sudan Red 7B
CAS No.	6368-72-5
Molecular Formula	C24H20N4O
Molecular Weight	380.45 g/mol
Synonyms	Sudan Red 7B; C.I. Solvent Red 19; C.I. 26050; 1-[[2-Methyl-4-[(2-methylphenyl)azo]phenyl]azo]-2-naphthalenol; Oil Red; Sudan Red B; Ceres Red 7B; Fat Red 7B; Spirit Red
EINECS	228-892-2

Quality Control

Our Sudan Red 7B is produced under a strict quality management system. Each batch undergoes comprehensive analytical testing to ensure identity, purity, and color strength meet defined specifications. Certificates of Analysis (COA) documenting key parameters such as assay, melting point, and solubility 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). Keep away from incompatible materials and sources of ignition.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Melting Point	Contact for details
Loss on Drying	≤ 2.0%
Solubility	Soluble in organic solvents

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