Description

2-Naphthalenecarboxylic Acid, 4-(4-Chloro-3-Sulfophenyl)Azo-3-Hydroxy-, Manganese(2+) Salt (1:1) is a complex, high-performance metal-organic pigment and dye intermediate. This compound matters for its excellent color fastness, thermal stability, and compatibility with various substrates, making it a critical component in demanding industrial coloration processes. It is primarily needed by manufacturers in the pigments, advanced coatings, plastics, and specialty inks sectors who require durable and vibrant colorants.

Application

• High-Performance Pigments: As a key intermediate for producing complex inorganic color pigments (CICPs) and other high-stability organic pigments.
• Industrial Coatings: For coloring coatings that require excellent weatherability, chemical resistance, and thermal stability, such as automotive and coil coatings.
• Plastics and Masterbatches: Imparting stable coloration to engineering plastics and polymers processed at elevated temperatures.
• Specialty Inks: Used in the formulation of inks for security printing, packaging, and other applications demanding color permanence.
• Textile Dyeing (Specialty): Potential use in dyeing technical textiles where metal-complex dyes are favored for their fastness properties.
• Research & Development: Serving as a precursor or standard in the synthesis and development of novel coordination compounds and functional materials.

Basic Information

Product Name	2-Naphthalenecarboxylic Acid, 4-(4-Chloro-3-Sulfophenyl)Azo-3-Hydroxy-, Manganese(2+) Salt (1:1)
CAS No.	73385-04-3
Molecular Formula	C17H9ClMnN2O7S
Molecular Weight	475.73 g/mol
Synonyms	Manganese 4-[(4-Chloro-3-sulfophenyl)azo]-3-hydroxy-2-naphthalenecarboxylate; C.I. Pigment Red 268; Manganese complex of 3-Hydroxy-4-[(4-chloro-3-sulfophenyl)azo]-2-naphthoic acid; 4-[(4-Chloro-3-sulfophenyl)azo]-3-hydroxy-2-naphthoic acid manganese salt; Manganese 3-Hydroxy-4-[(4-chloro-3-sulfophenyl)azo]-2-naphthoate; Azo manganese complex dye intermediate; PR 268 (C.I. Number)
EINECS	Contact for details

Quality Control

Our production of this manganese azo complex adheres to strict quality protocols to ensure batch-to-batch consistency and performance reliability. Quality is verified through comprehensive testing including HPLC for purity, ICP-MS for metal content, and spectrophotometry for color strength. A detailed Certificate of Analysis (COA) documenting identity, assay, and impurity profiles is provided with every shipment.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, well-ventilated area at room temperature (15-25°C). This material is light-sensitive (store away from light) and hygroscopic (moisture-sensitive). Keep away from strong acids and strong oxidizing agents.

Specification

Item	Specification
Appearance	Reddish-brown to dark brown powder
Identification (IR)	Conforms to structure
Assay (HPLC)	≥ 95.0%
Manganese Content (ICP)	10.5 - 12.5 %
Loss on Drying	≤ 2.0 %
Sulfated Ash	≤ 25.0 %
Heavy Metals (as Pb)	≤ 20 ppm
Solubility (in DMSO)	Clear solution

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