Description

Chromate(2-), [4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(3-)][1-[[2-hydroxy-5-[(2-methoxyphenyl)azo]phenyl]azo]-2-naphthalenolato(2-)]-, lithium sodium is a complex, high-performance azo dye complex salt. This compound is engineered for superior color fastness and stability in demanding industrial applications. It is primarily utilized by manufacturers in the textile, ink, and specialty coatings industries requiring precise and durable coloration.

Application

• Textile Dyeing: For dyeing natural and synthetic fibers, particularly where high lightfastness and washfastness are critical.
• Ink Formulation: As a key pigment for industrial printing inks, including packaging and security inks.
• Specialty Coatings: Used in the coloration of coatings for plastics, metals, and other substrates.
• Leather Finishing: Provides vibrant and durable color for finished leather goods.
• Paper Coloration: For high-grade colored paper and specialty paper products.
• Plastics and Polymers: As a masterbatch colorant for engineering plastics and consumer products.

Basic Information

Product Name	Chromate(2-), [4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(3-)][1-[[2-hydroxy-5-[(2-methoxyphenyl)azo]phenyl]azo]-2-naphthalenolato(2-)]-, lithium sodium
CAS No.	85828-74-6
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	C.I. Pigment Red 187; Lithol Rubine BK; Pigment Red 187; [1-[[2-Hydroxy-5-[(2-methoxyphenyl)azo]phenyl]azo]-2-naphthalenolato(2-)][4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(3-)]chromate(2-), lithium sodium salt; Lithium sodium 5-[(4,5-dihydro-3-methyl-5-oxo-1-phenyl-1H-pyrazol-4-yl)azo]-4-hydroxy-3-nitrobenzenesulfonato(4-)[6-hydroxy-5-[(2-methoxyphenyl)azo]-2-naphthalenolato(2-)]chromate(2-); Complex inorganic colorant PR187.
EINECS	Contact for details

Quality Control

Our production of Chromate(2-), [4-[4,5-dihydro-4-[(2-hydroxy-5-nitrophenyl)azo]-3-methyl-5-oxo-1H-pyrazol-1-yl]benzenesulfonato(3-)][1-[[2-hydroxy-5-[(2-methoxyphenyl)azo]phenyl]azo]-2-naphthalenolato(2-)]-, lithium sodium adheres to stringent quality protocols to ensure batch-to-batch consistency for industrial applications. The product is manufactured under a robust quality management system with critical parameters monitored throughout the synthesis and finishing processes. Certificates of Analysis (COA) detailing purity, color strength, and physical properties are available upon request to support your quality assurance and regulatory needs.

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 (moisture-sensitive) nature, the container must be kept tightly sealed when not in use to prevent absorption of atmospheric moisture, which can affect performance. Keep away from incompatible materials.

Specification

Item	Specification
Appearance	Red Powder
Identification (IR)	Conforms
Color Strength	100% ± 5% (vs. Standard)
Moisture Content	≤ 5.0%
Ash Content	Contact for details
Particle Size	Contact for details
Heavy Metals (as Pb)	≤ 20 ppm

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