Description

C.I. Acid Red 334 is a synthetic, water-soluble azo dye belonging to the acid dye class, identified by CAS No. 12235-14-2. It is valued for its bright, vivid red hue and strong affinity for protein-based and polyamide fibers, providing excellent color fastness. This dye is essential for manufacturers in the textile, leather, and paper industries seeking reliable and consistent coloration for their products.

Application

• Textile Dyeing: Primary application for dyeing natural protein fibers like wool, silk, and synthetic polyamide fibers such as nylon, offering good wash and light fastness.
• Leather Finishing: Used for coloring leather goods, providing uniform and deep penetration for a rich, durable finish.
• Paper Coloration: Employed in the production of specialty papers, including decorative and packaging papers, where a stable red color is required.
• Ink Formulation: A component in the manufacture of inks for various printing applications, including inkjet and textile printing inks.
• Biological Staining: Potential use as a histological stain in laboratory settings for microscopic analysis of tissues.
• Wood Staining: Applied for tinting and staining wood products to achieve specific aesthetic red tones.

Basic Information

Product Name	C.I. Acid Red 334
CAS No.	12235-14-2
Molecular Formula	C32H21N5Na2O8S2
Molecular Weight	713.64 g/mol
Synonyms	Acid Red 334; C.I. 17200; Acid Leather Red G; Nylosan Red F-3GL; Telon Red F3GL; Amacid Red 3GL; Supranol Red 3GW; Dermacid Red 334; 2,7-Naphthalenedisulfonic acid, 5-[[4-chloro-2-[(2-hydroxy-1-naphthalenyl)azo]-5-sulfophenyl]azo]-4-hydroxy-3-[(4-methylphenyl)azo]-, sodium salt (1:2)
EINECS	Contact for details

Quality Control

Our C.I. Acid Red 334 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. A Certificate of Analysis (COA) detailing specifications such as purity (by HPLC), heavy metal content, and moisture is provided with every shipment to guarantee compliance with your application 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 strong oxidizing agents. The product is hygroscopic (moisture-sensitive); ensure the container is sealed after each use to prevent moisture absorption and caking.

Specification

Item	Specification
Appearance	Red to dark red powder
Identification (IR)	Conforms to standard
Assay (HPLC)	≥ 95%
Color Strength	100 ± 3% (vs. Standard)
Moisture (Karl Fischer)	≤ 5.0%
Water Solubility	Clear solution at 1%
Ash Content	≤ 30%
Heavy Metals (as Pb)	≤ 20 ppm

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