Description

Acid Red 299 is a high-performance, water-soluble azo dye belonging to the acid dye class, widely recognized for its vibrant red hue and excellent fastness properties. Its primary value lies in delivering consistent, brilliant coloration with strong affinity for protein-based and polyamide fibers, making it a cornerstone for demanding textile applications. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and efficient red colorants for nylon, wool, silk, and ink formulations.

Application

• Primary dyeing and printing of nylon (polyamide) fibers and fabrics.
• Coloration of wool and silk textiles.
• Leather dyeing for footwear, apparel, and upholstery.
• Manufacture of inks for ballpoint pens, stamp pads, and other writing instruments.
• Paper coloration for specialty grades and decorative applications.
• As a colorant for anodized aluminum and other surface treatments.

Basic Information

Product Name	Acid Red 299
CAS No.	12220-41-6
Molecular Formula	C22H14N4Na2O7S2
Molecular Weight	556.48 g/mol
Synonyms	Acid Red 299; C.I. Acid Red 299; Acid Leather Red G; Nylosan Red F-3GL; Telon Red F3GL; Amacid Red 2G; Acid Fast Red A; 6-Hydroxy-5-[(2-methoxy-5-methyl-4-sulfophenyl)azo]-2-naphthalenesulfonic acid disodium salt
EINECS	Contact for details

Quality Control

Our production of Acid Red 299 adheres to stringent quality management protocols to ensure batch-to-batch consistency and performance reliability. Each lot is tested against key parameters including color strength, shade, solubility, and impurity profile to meet precise industrial specifications. Certificates of Analysis (COA) documenting purity, physical properties, and conformance 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. The product is light-sensitive (store away from light).

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	Min. 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture Content	Max. 5.0%
Water Solubility	Conforms
pH (1% Solution)	6.0 - 8.0
Ash Content	Max. 0.5%

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