Description

C.I. Acid Red 283 is a synthetic monoazo acid dye widely used for its vibrant red color and good fastness properties. This dye is valued for its ability to provide consistent, high-quality coloration in demanding industrial applications. It is primarily utilized by manufacturers in the textile, leather, and paper industries seeking reliable and efficient dyeing solutions.

Application

• Primary dyeing of nylon and wool fibers and fabrics.
• Coloration of leather goods, including footwear, apparel, and accessories.
• Production of colored paper and specialty paper products.
• Ink formulation for specific printing applications requiring acid dyes.
• Dyeing of silk to achieve bright red shades.
• As a colorant for certain types of anodized aluminum.

Basic Information

Product Name	C.I. Acid Red 283
CAS No.	61931-20-2
Molecular Formula	C23H21N5Na2O8S2
Molecular Weight	621.55 g/mol
Synonyms	Acid Red 283; C.I. 283; Acid Leather Red 2B; Acid Nylon Red 2B; Nylosan Red F-2B; Telon Red K-2B; Supranol Red 2BW; Acid Fast Red 2B; Acid Brilliant Red 2B; Acid Red 2B
EINECS	Contact for details

Quality Control

Our C.I. Acid Red 283 is manufactured under a strict quality management system to ensure batch-to-batch consistency and performance. Each lot undergoes comprehensive testing for key parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these results are available upon request 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 room temperature (15-25°C). Keep away from incompatible materials. Due to its light-sensitive nature, prolonged exposure to direct light should be avoided.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
Shade	Conforms to standard
Solubility in Water	Conforms
pH (1% Solution)	6.0 - 8.0

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