Description

1-Hydroxy-2,4-Bis(Phenylamino)Anthraquinone is a specialized anthraquinone derivative, recognized for its role as a key intermediate in the synthesis of high-performance dyes and pigments. This compound matters for its ability to impart specific color properties and chemical stability to the final products. It is primarily needed by manufacturers in the dye and pigment industries, as well as by research institutions developing advanced organic materials and functional colorants.

Application

• Primary intermediate in the synthesis of vat dyes and disperse dyes for textiles.
• Key building block for manufacturing high-grade organic pigments used in plastics, coatings, and inks.
• Research and development of novel functional dyes for non-textile applications.
• Used in the production of colorants for specialty applications requiring high lightfastness and thermal stability.
• Potential intermediate in the synthesis of photoactive materials and charge-transfer complexes.
• Reference standard for analytical and quality control purposes in chemical manufacturing.

Basic Information

Product Name	1-Hydroxy-2,4-Bis(Phenylamino)Anthraquinone
CAS No.	81-70-9
Molecular Formula	C32H22N2O3
Molecular Weight	482.53 g/mol
Synonyms	1-Hydroxy-2,4-bis(phenylamino)anthraquinone; 2,4-Bis(anilino)-1-hydroxyanthraquinone; 1-Hydroxy-2,4-dianilinoanthraquinone; C.I. 60710; C.I. Solvent Violet 13; D&C Violet No. 2; Solvent Violet 13; 81-70-9
EINECS	201-375-5

Quality Control

Our 1-Hydroxy-2,4-Bis(Phenylamino)Anthraquinone is produced under a stringent quality management system. Each batch undergoes comprehensive analytical testing, including identity confirmation, purity assay, and impurity profiling, to ensure it meets the high standards required for industrial synthesis and research. Certificates of Analysis (COA) detailing all 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). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Dark violet to black powder or crystals
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 1.0%
Residue on Ignition	≤ 0.5%
Heavy Metals (as Pb)	≤ 20 ppm

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