Description

Mordant Red 15 is a synthetic, water-soluble azo dye primarily used as a mordant dye for textiles and as a biological stain. Its core value lies in its ability to form stable, colored complexes with metal ions like aluminum, chromium, and iron, resulting in vibrant and wash-fast shades on various substrates. This compound is essential for industries requiring precise coloration and staining, particularly in textile dyeing and histological staining for microscopy.

Application

• Textile Dyeing: Primary application as a mordant dye for wool, silk, and nylon, producing red to violet shades with excellent light and wash fastness when complexed with metal salts.
• Biological Staining: Used in histology and cytology as a contrast stain for cell nuclei and cytoplasmic structures in tissue sections.
• Leather Coloring: Employed in the dyeing of leather goods to achieve rich, durable colors.
• Ink Formulation: A colorant component for specialty inks, including those for security printing or artistic purposes.
• Paper Coloring: Used for tinting paper products where specific color requirements are needed.
• Research & Development: Serves as a chemical intermediate or reference standard in laboratory synthesis and analytical chemistry.

Basic Information

Product Name	Mordant Red 15
CAS No.	6359-29-1
Molecular Formula	C16H13N3O5S2Na2
Molecular Weight	453.40 g/mol
Synonyms	Acid Chrome Dark Blue; Alizarin Bordeaux B; Alizarin Maroon B; Alizarin Red B; C.I. 58005; Chrome Bordeaux B; Chrome Fast Bordeaux B; Diamond Bordeaux B; Eriochrome Bordeaux B; Mordant Bordeaux B; Solochrome Bordeaux B
EINECS	228-782-5

Quality Control

Our Mordant Red 15 is manufactured under a stringent quality management system. Each batch undergoes rigorous testing to ensure consistent purity, color strength, and performance. Key parameters such as assay (dye content), ash content, and solubility are verified. Certificates of Analysis (COA) detailing these 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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed to prevent absorption of atmospheric moisture, which can affect product performance.

Specification

Item	Specification
Appearance	Dark red to brown powder
Identification (IR)	Conforms to structure
Assay (Dye Content)	Min. 95%
Moisture Content	Max. 5.0%
Ash Content	Max. 1.0%
Water Solubility	Completely soluble
pH (1% Solution)	6.0 - 8.0
Heavy Metals (as Pb)	Max. 20 ppm

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