Description

Acid Red 315 is a synthetic, water-soluble azo dye belonging to the acid dye class, known for its bright red color and good fastness properties. It is valued for its strong affinity to protein fibers like wool, silk, and nylon, providing vibrant and durable coloration. This dye is essential for manufacturers in the textile, leather, and paper industries seeking high-quality, reliable red shades for their products.

Application

• Primary dyeing and printing of wool and silk textiles.
• Coloration of nylon fibers and fabrics.
• Leather finishing for products requiring a bright red hue.
• Paper coloration for specialty papers and packaging.
• Ink formulation for specific printing applications.
• As a colorant for certain types of anodized aluminum.

Basic Information

Product Name	Acid Red 315
CAS No.	12220-47-2
Molecular Formula	C32H21N5Na2O8S2
Molecular Weight	713.64 g/mol
Synonyms	Acid Red 315; C.I. 18130; Acid Leather Red 2B; Nylosan Red F-3B; Telon Red F3B; Lissamine Red 3B; Acid Fast Red A; 2-Naphthalenesulfonic acid, 7-[[4-[[2-(sulfooxy)ethyl]sulfonyl]phenyl]azo]-8-hydroxy-3,6-disulfo-, sodium salt (1:3)
EINECS	Contact for details

Quality Control

Our Acid Red 315 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile. Certificates of Analysis (COA) documenting these specifications are provided with every shipment.

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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 0.5%
pH (1% Solution)	6.0 - 8.0
Shade	Conforms to standard
Fastness Properties	Contact for details

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