Description

Sulphur Brown 5 CAS NO 1327-00-0 is a high-performance sulfur-based dye belonging to the class of sulfur dyes, known for their excellent wash and light fastness properties on cellulosic fibers. This product is engineered to deliver deep, rich brown shades with superior economic and environmental profiles compared to many other dye classes. It is an essential coloring agent for industrial textile manufacturers and leather processors seeking durable, cost-effective coloration.

Application

• Textile Dyeing: Primary application for dyeing cotton, rayon, and other cellulosic fabrics to achieve a range of brown hues.
• Leather Processing: Used for dyeing leather goods, providing good penetration and color fastness.
• Paper Coloration: Suitable for tinting paper products where specific brown shades are required.
• Fiber Blends: Effective on fiber blends containing a high percentage of cellulosic materials.
• Industrial Fabric Coloring: Used for workwear, canvas, and other industrial textiles demanding durability.

Basic Information

Product Name	Sulphur Brown 5
CAS No.	1327-00-0
Molecular Formula	Complex Heterocyclic Sulfur Polymer
Molecular Weight	Not Applicable (Polymeric Mixture)
Synonyms	Sulfur Brown 5; C.I. Sulfur Brown 5; C.I. 53450; Sulphur Brown G; Leather Brown G; Sulphur Brown GD; Kayaku Sulphur Brown G; Mitsui Sulphur Brown G
EINECS	215-482-6

Quality Control

Our Sulphur Brown 5 is manufactured under a stringent quality management system. Every batch is tested against key parameters including shade, strength, solubility, and fastness properties to ensure consistent performance. A Certificate of Analysis (COA) detailing these results is provided with each shipment to guarantee compliance with your specifications and industry standards.

Storage

Preserve in a tightly closed container, protected from light. Store in a cool, dry, and well-ventilated area away from incompatible materials. Maintain storage temperature between 15-25°C. Keep container tightly sealed when not in use to minimize moisture absorption and dust contamination.

Specification

Item	Specification
Appearance	Brown to Dark Brown Powder/Granules
Shade	Conforms to Standard
Strength	100 ± 3% (vs. Standard)
Moisture Content	≤ 5.0%
Water Solubility of Sulfide	≤ 1.0%
Particle Size (Passing 80 mesh)	≥ 95%
Fastness to Washing	≥ 3-4 (Grey Scale)
Fastness to Light	≥ 4 (Blue Wool Scale)

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