Description

Sulphur Brown 1 is a synthetic organic dye belonging to the sulfur dye class, valued for its cost-effective and durable coloration properties. It is a critical industrial colorant, particularly known for providing deep, wash-fast brown shades on cellulosic fibers. This product is essential for manufacturers in the textile and leather industries seeking reliable and economical dyeing solutions. The compound is identified by CAS number 1326-37-0.

Application

Sulphur Brown 1 is a versatile dye with primary applications in:

• Textile Dyeing: Primarily used for dyeing cotton, rayon, and other cellulosic fabrics to achieve a range of brown hues with good wash and light fastness.
• Leather Finishing: Employed in the coloring of leather goods, including footwear, bags, and upholstery, providing deep and uniform color penetration.
• Paper Staining: Used for tinting paper products where a specific brown shade is required for aesthetic or functional purposes.
• Industrial Colorant: Serves as a colorant for non-textile materials such as wood stains or specialty coatings where sulfur dye properties are advantageous.

Basic Information

Product Name	Sulphur Brown 1
CAS No.	1326-37-0
Molecular Formula	Contact for details
Molecular Weight	Contact for details
Synonyms	Sulfur Brown 1; C.I. Sulphur Brown 1; C.I. 53000; Sulphur Brown G; Sulfur Brown G; Leather Brown G; Thional Brown G; C.I. Leather Brown 1
EINECS	Contact for details

Quality Control

Our Sulphur Brown 1 is manufactured under a strict quality management system. Every batch undergoes comprehensive analytical testing to ensure consistent shade, strength, and application performance. Key parameters such as dye content, solubility, and fastness properties are verified. A Certificate of Analysis (COA) detailing these specifications is provided with each shipment to guarantee product integrity and traceability.

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 to dark brown powder
Identification	Conforms (IR / TLC)
Dye Content	≥ 95% (Typical)
Moisture Content	≤ 5.0%
Water Solubility	Partially soluble (typical for sulfur dyes)
Shade on Cotton	Standard Brown
Fastness Properties (Wash, Light)	Good to Very Good

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