Description

1-Amino-4-Anilino-9,10-Dihydro-9,10-Dioxo-2-Anthracenesulphonic Acid is a specialized anthraquinone derivative, a key intermediate in the synthesis of high-value dyes and pigments. Its structure provides the essential chromophore and functional groups required for producing vivid, colorfast hues. This compound is primarily sought by manufacturers in the dye and pigment industries, as well as by research institutions developing advanced organic materials and colorants.

Application

• Dye Intermediate: A crucial precursor for the synthesis of anthraquinone-based acid dyes, disperse dyes, and vat dyes.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for plastics, coatings, and inks.
• Research & Development: Serves as a building block in academic and industrial R&D for novel chromophores and functional materials.
• Textile Colorants: Integral to creating specialized dyes for synthetic fibers like polyester and nylon, offering excellent wash and light fastness.
• Specialty Chemicals: Employed in the synthesis of more complex chemical entities for photographic and electronic applications.

Basic Information

Product Name	1-Amino-4-Anilino-9,10-Dihydro-9,10-Dioxo-2-Anthracenesulphonic Acid
CAS No.	2786-71-2
Molecular Formula	C20H14N2O5S
Molecular Weight	394.40 g/mol
Synonyms	1-Amino-4-anilinoanthraquinone-2-sulfonic acid; 1-Amino-4-(phenylamino)-9,10-dihydro-9,10-dioxo-2-anthracenesulfonic acid; Acid Blue 25 Intermediate; C.I. 62055; 2-Anthracenesulfonic acid, 1-amino-4-(phenylamino)-9,10-dihydro-9,10-dioxo-; 1-Amino-4-anilinoanthraquinone-2-sulphonic acid; 1-Amino-4-phenylaminoanthraquinone-2-sulfonic acid
EINECS	220-512-1

Quality Control

Our production of 1-Amino-4-Anilino-9,10-Dihydro-9,10-Dioxo-2-Anthracenesulphonic Acid adheres to stringent quality management protocols. Each batch undergoes rigorous analytical testing, including HPLC for purity and identity confirmation, to ensure consistency and compliance with customer specifications. Certificates of Analysis (COA) detailing all critical parameters are provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at a controlled room temperature (15-25°C). Keep away from strong acids and incompatible organic solvents. The container must be kept tightly sealed to protect from moisture.

Specification

Item	Specification
Appearance	Dark blue to violet powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulfated Ash	≤ 1.0%
Heavy Metals (as Pb)	≤ 20 ppm

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