Description

9,10-Dihydro-1,8-Dihydroxy-4,5-Dinitro-9,10-Dioxoanthracene-2,7-Disulphonic Acid is a high-purity, specialized anthraquinone derivative valued for its role as a critical intermediate in the synthesis of advanced dyes and pigments. Its unique disulphonic acid and dinitro-substituted structure provides essential functional groups for creating vivid, colorfast, and chemically stable colorants. This compound is primarily sought by manufacturers in the dyestuff, textile, and specialty chemical industries for developing high-performance products.

Application

• Key Intermediate for Dyes & Pigments: Serves as a crucial building block in the synthesis of high-value anthraquinone-based dyes, including acid dyes, reactive dyes, and solvent dyes.
• Textile Industry: Used in the production of dyes for coloring natural and synthetic fibers, prized for their brightness and wash-fastness.
• Specialty Chemical Synthesis: Acts as a versatile intermediate for creating complex organic molecules used in research and advanced material science.
• Analytical Chemistry: May be employed as a reagent or standard in analytical methods due to its distinct chemical structure.
• Photographic Chemicals: Potential use in the formulation of specialized light-sensitive chemicals or color couplers.
• Research & Development: Utilized in academic and industrial R&D for exploring new synthetic pathways and functional materials.

Basic Information

Product Name	9,10-Dihydro-1,8-Dihydroxy-4,5-Dinitro-9,10-Dioxoanthracene-2,7-Disulphonic Acid
CAS No.	128-90-5
Molecular Formula	C₁₄H₆N₂O₁₄S₂
Molecular Weight	514.34 g/mol
Synonyms	1,8-Dihydroxy-4,5-dinitroanthraquinone-2,7-disulfonic Acid; 4,5-Dinitro-1,8-dihydroxyanthraquinone-2,7-disulfonic Acid; Dihydroxy Dinitro Anthraquinone Disulfonic Acid; 1,8-Dihydroxy-4,5-dinitro-9,10-anthracenedione-2,7-disulfonic Acid; Anthraquinone, 1,8-dihydroxy-4,5-dinitro-2,7-disulfo-; C.I. 58610; Acid Anthraquinone Blue SW; Alizarine Bordeaux SW
EINECS	204-914-5

Quality Control

Our production of 9,10-Dihydro-1,8-Dihydroxy-4,5-Dinitro-9,10-Dioxoanthracene-2,7-Disulphonic Acid adheres to stringent quality management protocols to ensure batch-to-batch consistency and high purity. Each lot undergoes comprehensive analytical testing, including HPLC for assay and purity, and is supplied with a detailed Certificate of Analysis (COA) documenting all specifications. We are committed to meeting the rigorous standards required by the dye and fine chemical industries.

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 strong bases and oxidizing agents. Due to its complex aromatic structure, prolonged exposure to high temperatures or direct light should be avoided to maintain stability.

Specification

Item	Specification
Appearance	Yellow to Orange-Brown Powder
Identification (IR)	Conforms to Structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 2.0%
Sulphated 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.