Description

C. I. Reactive Brown 47 is a high-purity, reactive dye belonging to the azo chemical class, designed for covalent bonding with textile fibers. This compound is essential for achieving durable, wash-fast brown colorations in industrial dyeing processes. It is primarily required by manufacturers in the textile industry for dyeing and printing cellulosic fibers like cotton, viscose, and linen, as well as for wool and silk applications where strong color fixation is critical.

Application

• Exhaust dyeing of cotton and other cellulosic fabrics.
• Continuous pad-batch and pad-steam dyeing processes for textiles.
• Printing applications on natural fiber substrates.
• Dyeing of wool and silk to achieve rich brown shades.
• Used in the coloration of viscose rayon and linen.
• Potential application in the research and development of new dye formulations.

Basic Information

Product Name	C. I. Reactive Brown 47
CAS No.	96293-54-8
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Reactive Brown 47; C.I. Reactive Brown 47; Reactive Brown H-4R; Reactive Brown KE4R; Reactive Brown KE-4R; C.I. 18205; Reactive Brown K-4R; DyStar Reactive Brown KE-4R
EINECS	Contact for details

Quality Control

Our C. I. Reactive Brown 47 is manufactured under a stringent quality management system to ensure batch-to-batch consistency and performance. The product undergoes rigorous quality testing, including purity assay and strength evaluation, to ensure compliance with industry standards for reactive dyes. Certificates of Analysis (COA) documenting 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 place at room temperature (15-25°C). Due to its hygroscopic (moisture-sensitive) nature, the container must be kept tightly sealed after initial use to prevent absorption of atmospheric moisture, which can affect performance.

Specification

Item	Specification
Appearance	Brown Powder
Identification (IR)	Conforms
Assay (HPLC)	≥ 95.0%
Shade	Standard
Strength	100 ± 3%
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.