Description

Alizarin Rubinol R is a synthetic anthraquinone derivative dye, identified by CAS No. 4478-76-6. This high-purity colorant is valued for its excellent tinctorial strength and stability in various formulations. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries seeking consistent and vibrant coloration.

Application

• Textile Dyeing: Used for dyeing natural and synthetic fibers, particularly where good lightfastness is required.
• Ink Manufacturing: Serves as a key pigment for producing printing inks, including inks for packaging and security applications.
• Specialty Coatings: Incorporated into industrial and decorative coatings to provide durable color.
• Biological Staining: Employed in histological and cytological staining procedures in laboratory settings.
• Plastics and Polymers: Used as a colorant for masterbatches and compounded polymer products.
• Analytical Chemistry: Functions as a reagent or indicator in specific chemical analysis methods.

Basic Information

Product Name	Alizarin Rubinol R
CAS No.	4478-76-6
Molecular Formula	C₁₄H₈O₄
Molecular Weight	240.21 g/mol
Synonyms	Alizarin Rubinol; 1,2-Dihydroxyanthraquinone; Mordant Red 11; Alizarin Red; Turkey Red; CI 58000; 9,10-Anthracenedione, 1,2-dihydroxy-; 1,2-Dihydroxy-9,10-anthraquinone
EINECS	224-751-8

Quality Control

Our Alizarin Rubinol R is produced under a rigorous quality management system. Every batch is tested to ensure it meets stringent specifications for purity, color value, and chemical identity. A comprehensive Certificate of Analysis (COA) detailing assay, impurity profile, and physical properties is available for review and traceability.

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	Orange-red to brown powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 98.0%
Loss on Drying	≤ 1.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Solubility	Soluble in alkaline solutions, slightly soluble in ethanol

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