What is it?
Basic Red 46 is a dark red powder dye of the azo group used in wool, silk, acrylic, and polyester textile printing (sweaters, shirts, socks, etc).

How can I avoid it?
Avoidance requires reading the product labels, package inserts, Safety Data Sheets (SDS), and on occasion, direct communication with the manufacturer.

Strict avoidance of offending dye sources (avoidance of specific color often is not helpful).
  • Wear loose-fitting clothes if possible and avoid nylon stockings especially dark colors
  • Wash new clothing and bed linens 3 times before use
  • Try to wear natural-based fabrics, such as silk, cotton, and wool
  • Long-sleeve white silk underwear can be worn as a barrier if certain outer wear fabrics cannot be avoided
  • Mono azo dye used for:
    • Wool
    • Silk
    • Acrylic/Cellulose (cotton or linen) fiber
    • Polyester
    • Acrylic textile printing (sweaters, shirts, socks)
  • Hair colorant
Other names for Basic Red 46:
  • 12221-69-1
  • Cationic Red X-GRL
Potential cross-reacting/co-reacting substances:
  • Other basic dyes

How safe is it?

Hang tight. We're thinking.