Description

Chromium, [4-hydroxy-3-[(2-hydroxy- 3,5-dinitrophenyl)azo]-7-[(4-methoxyphenyl)amino] -2-naphthalenesulfonato(3-)]-, reaction products with 1-[(5-chloro-2-hydroxyphenyl)azo]-2-naphthalenol, sodium salts is a complex, high-performance chromium-based azo dye intermediate. This compound is engineered to deliver exceptional color strength and stability, making it a critical component for producing durable pigments. It is primarily utilized by manufacturers in the coatings, plastics, and specialty ink industries seeking reliable and consistent colorants for demanding applications.

Application

• High-Performance Pigments: Key intermediate for the synthesis of complex inorganic colorants (CICs) and other high-grade pigments.
• Industrial Coatings: Used in the formulation of automotive, coil, and powder coatings requiring excellent weatherability and chemical resistance.
• Plastics and Masterbatches: Imparts stable coloration to engineering plastics and polymers processed at high temperatures.
• Specialty Inks: A component in security, packaging, and other inks where color fidelity and durability are paramount.
• Dye Manufacturing: Serves as a precursor for the production of specialized metal-complex dyes.

Basic Information

Product Name	Chromium, [4-hydroxy-3-[(2-hydroxy- 3,5-dinitrophenyl)azo]-7-[(4-methoxyphenyl)amino] -2-naphthalenesulfonato(3-)]-, reaction products with 1-[(5-chloro-2-hydroxyphenyl)azo]-2-naphthalenol, sodium salts
CAS No.	145951-43-5
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Brown 41; Chromium complex of 1-[(5-chloro-2-hydroxyphenyl)azo]-2-naphthalenol and [4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]-7-[(4-methoxyphenyl)amino]-2-naphthalenesulfonic acid]; Sodium salts of chromium complex with 1-[(5-chloro-2-hydroxyphenyl)azo]-2-naphthol and 4-hydroxy-3-[(2-hydroxy-3,5-dinitrophenyl)azo]-7-[(4-methoxyphenyl)amino]-2-naphthalenesulfonic acid; Pigment Brown 41; C.I. 21115; Chromium brown complex; Metal complex brown pigment
EINECS	Contact for details

Quality Control

Our production of this chromium complex pigment intermediate adheres to stringent quality protocols to ensure batch-to-batch consistency and performance reliability. Every lot undergoes comprehensive analysis, including purity assay, metal content verification, and shade strength evaluation. Certificates of Analysis (COA) documenting all critical parameters are available upon request to support your quality assurance and regulatory compliance needs.

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). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent degradation from atmospheric moisture.

Specification

Item	Specification
Appearance	Brown to dark brown powder
Identification (IR)	Conforms to standard
Assay (Chromium Content)	Contact for details
Moisture (Loss on Drying)	≤ 5.0%
Sieve Residue	Contact for details
pH (Aqueous Slurry)	Contact for details

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