Description

C.I.Direct Brown 170 is a high-performance, substantive direct dye belonging to the azo chemical class. This compound is valued for its excellent affinity to cellulosic fibers, providing deep, uniform shades with good wash fastness. It is primarily utilized in the textile industry for dyeing cotton, viscose, and other regenerated fibers, as well as in the paper and leather industries. Our supply of CAS No. 12222-22-9 ensures consistent quality and reliable performance for industrial-scale operations.

Application

• Primary dyeing of cotton fabrics and yarns.
• Coloration of viscose rayon and other regenerated cellulose materials.
• Dyeing of paper pulp and specialty papers.
• Coloring leather products.
• Used in the production of colored paper products and packaging.
• Formulation of ink and pigment preparations.
• Educational and research applications in dye chemistry.

Basic Information

Product Name	C.I. Direct Brown 170
CAS No.	12222-22-9
Molecular Formula	C34H24N8Na4O16S4
Molecular Weight	1080.86 g/mol
Synonyms	Direct Brown 170; Direct Brown M; C.I. 31710; Direct Brown 170 (C.I.); Benzo Brown M; Sirius Brown M; Chloramine Brown M; Diazol Brown M; Direct Fast Brown M; Direct Brown 170 (VAN)
EINECS	Contact for details

Quality Control

Our C.I. Direct Brown 170 is manufactured under a stringent quality management system. Every batch undergoes comprehensive analytical testing to ensure it meets precise specifications for color strength, shade, and physical purity. Certificates of Analysis (COA) documenting key parameters are provided to guarantee batch-to-batch consistency and performance reliability for your production processes.

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.

Specification

Item	Specification
Appearance	Brown to dark 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
Fastness Properties	To be specified per grade

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