Direct Brown 1 | CAS 3811-71-0 Manufacturer & Supplier in China

Product Overview

Direct Brown 1 (CAS 3811-71-0) is a high-performance disazo direct dye characterized by its excellent solubility and affinity for cellulose-based materials. As a premier China manufacturer and supplier within the Fine Chemicals sector, Conscientia Industrial provides high-quality Direct Brown 1 optimized for the textile, leather, and paper industries. This technical-grade colorant is engineered to provide deep, consistent brown hues with reliable color fastness, ensuring superior performance in bulk industrial dyeing and coloring processes worldwide.

Technical Specifications

• Product Name: Direct Brown 1

• CAS Number: 3811-71-0

• Quality Standard: Industrial Grade / In-house

• Dye Content: ≥90.0% (Standardized Strength)

• Molecular Formula: C31H22N8Na2O6S

• Molecular Weight: 680.6

• Appearance: Brownish-black powder

• Solubility: Soluble in water

• pH Stability: 7.0 - 9.5

• Light Fastness: Grade 3 - 4

• Country of Origin: China

• Pricing: Competitive price based on quantity

• Currency: USD

• Chemical Structure:

Why Partner with Conscientia Industrial

• Industrial Dye Expertise: Specialized in the synthesis and standardization of direct dyes for large-scale industrial applications.

• Advanced Quality Control: Every batch of Direct Brown 1 is tested for color strength, shade consistency, and solubility to meet global industrial standards.

• Documentation and Compliance: We provide full technical dossiers, including Certificate of Analysis (COA), MSDS, and technical data sheets (TDS).

• Scalable Industrial Supply: Reliable production capacity from our China facility to support your needs from sample testing to bulk container shipments.

• As a leading China manufacturer, we provide Direct Brown 1 CAS 3811-71-0 with factory-direct pricing.

Packaging & Storage

• Standard Packaging: 25kg/iron drum, 25kg/woven bag with inner plastic lining, or custom bulk packaging.

• Storage Conditions: Store in a cool, dry, and well-ventilated warehouse. Keep the container tightly sealed and protected from moisture and direct sunlight.

• Safety Handling: This is an industrial-grade chemical intended for professional manufacturing and laboratory research use only.

• Our logistics team ensures safe delivery of Direct Brown 1 CAS 3811-71-0 by courier / air / sea.

Request a Quote & COA for Direct Brown 1 CAS 3811-71-0 Today.