Description

1-Amino-9,10-Dihydro-4-[(2-Methoxyphenyl)Amino]-9,10-Dioxoanthracene-2-Sulphonic Acid is a specialized anthraquinone derivative, valued for its role as a key synthetic intermediate and functional dye precursor. This compound is engineered to deliver consistent performance in applications requiring specific chromophoric and chemical properties. It is primarily utilized by manufacturers in the dye and pigment, pharmaceutical, and advanced material science industries for research and production purposes.

Application

• Dye and Pigment Intermediate: A critical building block for synthesizing high-value anthraquinone dyes, particularly for textile and specialty coloring applications.
• Functional Dye Synthesis: Used in the production of dyes for liquid crystal displays (LCDs), optical data storage, and other advanced photonic materials.
• Pharmaceutical Research Intermediate: Serves as a precursor in the synthesis of complex molecules for medicinal chemistry and active pharmaceutical ingredient (API) development.
• Analytical Chemistry Reagent: Employed as a chromogenic agent or a standard in analytical methods and quality control testing.
• Polymer and Material Science: Incorporated into polymers to impart specific optical or functional properties.
• Chemical Research & Development: A valuable compound for academic and industrial R&D exploring new organic synthesis pathways and novel material properties.

Basic Information

Product Name	1-Amino-9,10-Dihydro-4-[(2-Methoxyphenyl)Amino]-9,10-Dioxoanthracene-2-Sulphonic Acid
CAS No.	75313-88-1
Molecular Formula	C21H16N2O6S
Molecular Weight	424.43 g/mol
Synonyms	1-Amino-4-[(2-methoxyphenyl)amino]-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid; 1-Amino-4-(2-methoxyanilino)-9,10-dihydro-9,10-dioxoanthracene-2-sulfonic acid; 2-Anthracenesulfonic acid, 1-amino-9,10-dihydro-4-[(2-methoxyphenyl)amino]-9,10-dioxo-; Disperse Blue 291; C.I. 113455; CAS 75313-88-1; 4-[(2-Methoxyphenyl)amino]-1-aminoanthraquinone-2-sulfonic acid
EINECS	Contact for details

Quality Control

Our production of 1-Amino-9,10-Dihydro-4-[(2-Methoxyphenyl)Amino]-9,10-Dioxoanthracene-2-Sulphonic Acid adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure it meets precise specifications for colorant and intermediate applications. Certificates of Analysis (COA) detailing all test results are available upon request to support your quality assurance and regulatory compliance 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 tightly sealed to prevent absorption of atmospheric moisture, which can affect product stability and performance.

Specification

Item	Specification
Appearance	Dark blue to violet powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Total impurities ≤ 5.0%

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