Description

3-Hydroxy-4-[(2,6-Dimethylphenyl)Azo]-2,7-Naphthalenedisulfonic Acid Disodium Salt is a high-purity azo dye intermediate and analytical reagent. This compound is valued for its precise chemical structure and consistent performance in specialized synthesis and colorimetric applications. It is primarily utilized by manufacturers and research laboratories in the dye and pigment, analytical chemistry, and life science sectors.

Application

• Dye and Pigment Intermediate: A key precursor for synthesizing specific azo dyes and pigments, particularly those requiring a naphthalene disulfonic acid backbone for solubility and color properties.
• Analytical Reagent: Used in research and quality control laboratories as a chromogenic agent or standard in colorimetric assays and chemical analysis.
• Biochemical Research: Potential application as a staining agent or probe in histological and cytological studies due to its azo chromophore.
• Specialty Chemical Synthesis: Serves as a building block for the production of more complex functional molecules in pharmaceutical and agrochemical research.
• Textile Industry: Employed in the development and testing of specialized dyes for synthetic fibers.
• Ink Formulation: Used in the development of specialty inks where specific light-fastness and solubility characteristics are required.

Basic Information

Product Name	3-Hydroxy-4-[(2,6-Dimethylphenyl)Azo]-2,7-Naphthalenedisulfonic Acid Disodium Salt
CAS No.	18483-26-6
Molecular Formula	C18H14N2Na2O7S2
Molecular Weight	488.41 g/mol
Synonyms	Acid Red 26 (disodium salt); C.I. 16150; 2,7-Naphthalenedisulfonic acid, 3-hydroxy-4-[(2,6-dimethylphenyl)azo]-, disodium salt; Disodium 3-hydroxy-4-[(2,6-dimethylphenyl)azo]naphthalene-2,7-disulphonate; 2,7-Naphthalenedisulfonic acid, 4-[(2,6-dimethylphenyl)azo]-3-hydroxy-, disodium salt; 4-[(2,6-Dimethylphenyl)azo]-3-hydroxy-2,7-naphthalenedisulfonic acid disodium salt; C.I. Acid Red 26
EINECS	242-355-6

Quality Control

Our 3-Hydroxy-4-[(2,6-Dimethylphenyl)Azo]-2,7-Naphthalenedisulfonic Acid Disodium Salt is produced under a strict quality management system. Each batch undergoes rigorous analytical testing to ensure identity, purity, and consistency. Certificates of Analysis (COA) detailing specific results for assay, impurities, and other critical parameters are available for every shipment 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 controlled room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, minimize exposure during handling.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Loss on Drying	≤ 5.0%
Sulfated Ash	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm
Related Substances (HPLC)	Contact for details
Solubility (in Water)	Freely soluble

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