Malachite Green (Basic Green 4)

1. Product Overview

Malachite Green is a brilliant bluish-green basic dye widely used in textiles, leather, paper, and biological staining.

• CI Name & No.: Basic Green 4

• CAS No.: 569-64-2

• Category: Basic (cationic) dye

• Appearance: Deep green crystalline powder

• Shade: Bright green

• Key Features: High tinctorial strength, brilliant shade, good solubility, wide applicability

• Markets: Textiles, leather, paper, aquaculture, biological applications

2. Technical Specifications

3. Key Features & Benefits

• Brilliant bluish-green shade – high color intensity and clarity

• Excellent solubility – dissolves readily in water for easy application

• Wide usage – textiles, leather, paper, and biological staining

• Cost-effective – reliable performance with strong color value

• Special application – used in aquaculture as a fungicide and antiseptic

4. Applications

• Textiles – dyeing of acrylic fibers and blends

• Leather – used in leather finishing for vivid green shades

• Paper – coloring of paper and board

• Biological staining – microbiology and histology stain

• Aquaculture – historically used for treating fungal infections in fish

  
  

5. Quality & Compliance

• COA provided with each batch (Shade, Strength, Moisture, pH)

• APEO-free, conforms to EU azo dye restrictions

• SDS available in English (other languages on request)

• Heavy metals & formaldehyde controlled within international standards

6. Packaging & Logistics

• Standard: 25 kg P.W. bag / carton / iron drum

• Bulk: 500–1000 kg jumbo bags available

• MOQ: 100 kg (trial order) / 1 MT (bulk order)

• Delivery: 7–10 days from warehouse

• Shelf life: 24 months (dry, ventilated storage)

• Ports: Tianjin / Qingdao / Shanghai

7. Samples & Support

• Free laboratory samples (10–50 g) available

• Courier freight to be paid by customer (DHL/UPS/FedEx account)

• Technical support for shade matching and dyeing guidance

8. Related Products

• Cationic Blue X-BL (Basic Blue 159) – bright blue basic dye for acrylic fibers

• Cationic Golden Yellow X-GL (Basic Yellow 28) – brilliant golden-yellow basic dye for acrylic fibers

• Rhodamine B Extra (Basic Violet 10) – brilliant bluish-pink basic dye for paper, incense, and textiles