Description

Acid Red 167 is a synthetic monoazo acid dye renowned for its bright, vivid red color and excellent fastness properties. This high-performance dye is engineered to deliver consistent, reliable coloration and strong adhesion to various substrates, making it a critical component for manufacturers requiring durable and vibrant hues. It is primarily utilized in the textile, leather, and paper industries for dyeing and printing applications where color stability and quality are paramount.

Application

• Textile Dyeing: Primary application for dyeing nylon, silk, and wool fibers, providing excellent wash and light fastness.
• Leather Finishing: Used for coloring leather goods, offering rich, uniform shades with good penetration.
• Paper Coloration: Employed in the production of specialty papers, decorative papers, and packaging materials.
• Ink Formulation: A key pigment for manufacturing inks used in ballpoint pens, stamp pads, and other writing instruments.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis.
• Plastics and Polymers: Can be used for coloring certain types of plastics and synthetic materials.

Basic Information

Product Name	Acid Red 167
CAS No.	61901-41-5
Molecular Formula	C23H21N4NaO5S
Molecular Weight	488.49 g/mol
Synonyms	Acid Leather Red G; C.I. Acid Red 167; Acid Fast Red G; Nylosan Red F-G; Telon Red F-G; Acid Red G; 2-Naphthalenesulfonic acid, 7-[[4-[(2,4-dimethylphenyl)azo]phenyl]amino]-4-hydroxy-3-[(4-methylphenyl)azo]-, monosodium salt
EINECS	263-272-8

Quality Control

Our Acid Red 167 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and high purity. Each lot is tested against rigorous internal specifications that assess color strength, shade, solubility, and impurity profiles. A comprehensive Certificate of Analysis (COA) detailing the results of these tests is provided with every shipment to guarantee compliance with your technical requirements.

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 incompatible materials and sources of heat. The product is light-sensitive and should be stored away from direct light exposure to maintain stability.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95.0%
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Solubility	Conforms
Ash Content	≤ 1.0%

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