Description

C.I. Acid Brown 314 is a synthetic azo dye belonging to the acid dye class, widely recognized for its application in textile coloration. This product is valued for its ability to provide consistent, vibrant brown shades with good fastness properties on protein fibers like wool, silk, and nylon. It is a critical component for dye houses and textile manufacturers globally seeking reliable and high-performance colorants for their processes.

Application

• Primary dyeing of wool and silk fabrics and yarns.
• Coloration of nylon fibers in textile and carpet industries.
• Used in the production of leather goods for uniform dyeing.
• Ink formulation for specialized printing applications.
• As a colorant for paper and other cellulosic-based materials when used with appropriate mordants.
• Research and development of new dye formulations and color blends.

Basic Information

Product Name	C.I. Acid Brown 314
CAS No.	12219-81-7
Molecular Formula	C32H21N5Na4O19S4
Molecular Weight	1011.8 g/mol
Synonyms	Acid Brown 314; Acid Leather Brown PR; C.I. 20195; Acid Brown PR; Acid Fast Brown PR; Lanasyn Brown S-RBL; Supranol Fast Brown PR; Telon Fast Brown K-RBL
EINECS	Contact for details

Quality Control

Our C.I. Acid Brown 314 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise color strength, shade, and purity specifications. Certificates of Analysis (COA) detailing key parameters 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 strong oxidizing agents.

Specification

Item	Specification
Appearance	Brown powder
Identification (IR)	Conforms to standard
Color Strength	100 ± 3% (vs. Standard)
Shade	Conforms to standard
Moisture Content	≤ 5.0%
Water Insoluble Matter	≤ 1.0%
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.