Direct Blue 71 | CAS 4399-55-7 Manufacturer & Supplier in China

Product Overview

Direct Blue 71 (CAS 4399-55-7) is a trisazo synthetic dye characterized by its deep blue hue and excellent affinity for cellulosic fibers. As a premier China manufacturer and supplier within the Dyes and Pigments sector, Conscientia Industrial provides high-performance Direct Blue 71 produced via precise diazotization and coupling reactions. This versatile colorant is widely utilized in the textile industry for dyeing cotton, viscose, and linen, as well as in paper manufacturing and biological staining research, ensuring superior colorfastness and batch-to-batch consistency for global industrial applications.

Technical Specifications

• Product Name: Direct Blue 71

• CAS Number: 4399-55-7

• Quality Standard: Industrial Grade / In-house

• Purity (HPLC/Spectrophotometry): ≥99.0%

• Molecular Formula: C40H28N7NaO13S4

• Molecular Weight: 965.93

• Appearance: Dark blue to blackish-blue powder

• Solubility: Soluble in water (Deep Blue)

• Water Content: ≤5.0%

• Country of Origin: China

• Pricing: Competitive price based on quantity

• Currency: USD

• Chemical Structure:

Why Partner with Conscientia Industrial

• Dye Synthesis Expertise: Specialized in the production of complex multi-azo direct dyes with optimized solubility and exhaustion properties.

• Advanced Quality Control: Every batch of Direct Blue 71 is tested for shade consistency, strength, and impurity levels to meet international textile and industrial standards.

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

• Scalable Industrial Supply: Reliable production capacity from our China facility to support both specialized laboratory requirements and large-scale textile mill orders.

• As a leading China manufacturer, we provide Direct Blue 71 CAS 4399-55-7 with factory-direct pricing.

Packaging & Storage

• Standard Packaging: 25kg/drum, 25kg/carton, or custom bulk bags based on customer requirements.

• Storage Conditions: Store in a cool, dry, and well-ventilated warehouse. Keep the container tightly sealed and away from strong oxidizing agents and moisture.

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

• Our logistics team ensures safe delivery of Direct Blue 71 CAS 4399-55-7 by courier / air / sea.

Request a Quote & COA for Direct Blue 71 CAS 4399-55-7 Today.