Description

C.I. Acid Red 116 is a synthetic monoazo acid dye known for its bright red color and good lightfastness. It is a critical component for achieving durable and vibrant red shades in various industrial dyeing and printing processes. This product is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent colorants for their products.

Application

• Primary dyeing of wool, silk, and polyamide (nylon) fibers.
• Printing applications on natural and synthetic protein-based textiles.
• Coloration of leather goods, including footwear, bags, and upholstery.
• Dyeing of paper and specialty paper products for decorative purposes.
• Used in the formulation of inks for specific marking and stamping applications.
• Potential use as a biological stain in laboratory settings (subject to specific grade purity).

Basic Information

Product Name	C.I. Acid Red 116
CAS No.	6245-62-1
Molecular Formula	C32H24N6Na2O8S2
Molecular Weight	730.68 g/mol
Synonyms	Acid Red 116; C.I. 26660; Acid Leather Red BG; Acid Nylon Red BG; Nylosan Red F-BL; Telon Red K-BL; Acid Fast Red E-B; Acid Brilliant Red E-B; 2-Naphthalenesulfonic acid, 7-[[4-[(2,4-dimethylphenyl)azo]phenyl]azo]-1,3-naphthalenedisulfonic acid, disodium salt
EINECS	228-384-2

Quality Control

Our C.I. Acid Red 116 is produced under a strict quality management system. Each batch undergoes comprehensive testing for key parameters including color strength, shade, solubility, and impurity profile to ensure consistent performance in your application. A detailed Certificate of Analysis (COA) is provided with every shipment to guarantee compliance with agreed specifications.

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. The product is light-sensitive and should be stored away from direct light exposure.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
Solubility in Water	Conforms
Fastness Properties (Light, Wash)	Grade 4-5 (Typical)

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