Description

Sodium 1-Amino-9,10-Dihydro-4-[(2-Methoxy-5-Methylphenyl)Amino]-9,10-Dioxoanthracene-2-Sulphonate is a specialized anthraquinone derivative valued for its role as a key intermediate in the synthesis of high-performance dyes and pigments. This compound is engineered to provide precise chemical functionality, enabling the production of materials with specific coloristic and fastness properties. It is primarily sought after by manufacturers in the dyestuff, textile, and specialty chemical industries for developing advanced coloring agents.

Application

• Primary Intermediate for Anthraquinone Dyes: Serves as a crucial building block in the synthesis of disperse, vat, and reactive dyes for textiles.
• Specialty Pigment Manufacturing: Used in the production of high-grade organic pigments for inks, coatings, and plastics requiring excellent stability.
• Functional Dye Synthesis: A precursor for dyes used in non-textile applications, such as laser dyes, optical data storage, and liquid crystal displays (LCDs).
• Research & Development: Employed in academic and industrial R&D labs for exploring novel chromophores and photoactive materials.
• Fine Chemical Production: Acts as an intermediate in the multi-step synthesis of complex, value-added chemical products.

Basic Information

Product Name	Sodium 1-Amino-9,10-Dihydro-4-[(2-Methoxy-5-Methylphenyl)Amino]-9,10-Dioxoanthracene-2-Sulphonate
CAS No.	67969-95-3
Molecular Formula	C22H17N2NaO6S
Molecular Weight	460.43 g/mol
Synonyms	1-Amino-4-[(2-methoxy-5-methylphenyl)amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid sodium salt; Sodium 1-amino-4-(2-methoxy-5-methylanilino)anthraquinone-2-sulfonate; C.I. Disperse Blue 291; Acid Blue 291; Anthraquinone dye intermediate; 4-[(2-Methoxy-5-methylphenyl)amino]-1-aminoanthraquinone-2-sulfonic acid sodium salt; 67969-95-3
EINECS	Contact for details

Quality Control

Our production of this anthraquinone intermediate adheres to strict quality management protocols to ensure batch-to-batch consistency and high purity. Every lot is analyzed using advanced techniques including HPLC and spectrophotometry. A comprehensive Certificate of Analysis (COA) detailing identity, purity, and impurity profiles is provided with each shipment to support your quality assurance and regulatory needs.

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 sealed to minimize exposure to atmospheric humidity.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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