Description

2,8-Diamino-1,5-Dihydroxyanthraquinone is a specialized anthraquinone derivative with a unique di-amino, di-hydroxy substitution pattern. This compound serves as a critical intermediate in the synthesis of high-value functional dyes and pigments, prized for their color fastness and thermal stability. It is essential for manufacturers in the dye and pigment industries, as well as for research institutions developing advanced materials for electronics and imaging technologies. CAS No. 31651-04-4.

Application

• Dye Intermediate: Primary use as a key precursor for the synthesis of vat dyes, disperse dyes, and solvent dyes, imparting shades of blue, green, and black with excellent properties.
• Pigment Manufacturing: Used in the production of high-performance organic pigments for plastics, coatings, and inks, where durability and color consistency are paramount.
• Functional Materials: Investigated for use in the development of electrochromic materials, organic semiconductors, and photoconductive layers in electronic devices.
• Analytical Chemistry: Serves as a reagent or a standard in chromatographic analysis and quality control within chemical manufacturing.
• Research & Development: A valuable building block in academic and industrial R&D for novel anthraquinone-based compounds with specific optical or chemical functionalities.

Basic Information

Product Name	2,8-Diamino-1,5-Dihydroxyanthraquinone
CAS No.	31651-04-4
Molecular Formula	C₁₄H₁₀N₂O₄
Molecular Weight	270.24 g/mol
Synonyms	1,5-Dihydroxy-2,8-diaminoanthraquinone; 2,8-Diamino-1,5-anthraquinonediol; C.I. 62500; C.I. Vat Blue 66; Diamino Dihydroxy Anthraquinone; DAHAQ; 1,5-Dihydroxy-2,8-anthracenediamine
EINECS	Contact for details

Quality Control

Our 2,8-Diamino-1,5-Dihydroxyanthraquinone is manufactured under a strict quality management system. Each batch undergoes comprehensive analytical testing, including HPLC for purity and identity confirmation, to ensure it meets exacting standards for use in sensitive applications. Certificates of Analysis (COA) documenting purity, related substances, and physical properties are provided with every shipment to guarantee traceability and consistency.

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 nature, the container must be kept tightly sealed to minimize exposure to atmospheric moisture.

Specification

Item	Specification
Appearance	Dark Blue to Violet Powder
Identification (IR)	Conforms
Purity (HPLC)	≥ 98.0%
Loss on Drying	≤ 2.0%
Heavy Metals	≤ 20 ppm
Residue on Ignition	≤ 0.5%

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