Black catechu extract

Black catechu extract (CAS 8001-76-1), also known as catechu resin and cachou extract, is a natural plant-derived extract obtained from the heartwood of Acacia catechu.

Where is Black catechu extract used?

• Textile dyeing: fast brown and khaki shades on cotton and wool, particularly in traditional and natural fiber processing
• Leather tanning: vegetable tanning agent producing firm, durable hides with characteristic color and texture
• Food and beverage: flavoring and natural colorant in confectionery, chewing products, and certain beverages (FEMA 2264)
• Paper manufacturing: surface treatment agent imparting color and improving resistance properties in specialty paper grades
• It functions as a natural colorant, tanning agent, and antioxidant.

Good to know: It is especially effective where synthetic dyes are restricted or where natural finishes are required. Food-grade and technical-grade specifications are the most commonly traded; buyers select the appropriate grade based on end-use regulatory requirements.

Commercial specifications

• Moisture content and catechin concentration are standard quality parameters referenced in commercial specifications.