Basic red 46 is a dark red powder dye used in wool, silk, acrylic/cellulosic (cotton or linen) fiber blends, polyester and acrylic textile printing (sweaters, shirts, socks etc.) Allergic patients should avoid contact with these materials, wash new clothing or bed linens multiple times before use, and wear fabric made of natural fibers such as silk, wool, and cotton.
Avoid products that list any of the following names in the ingredients:
• Basic red 46
• Cationic red X-GRL
• 3(or5)-[[4-[benzylmethylamino]phenyl]azo]-1,2(or1,4)-dimethyl-1H-1,2,4-triazolium bromide
• C.I. Basic red 46; 5-[(E)-{4-[benzyl(methyl)amino]phenyl}diazenyl]-1,4-dimethyl-4,5-dihydro-1H-1,2,4-
triazol-1-ium bromide
• Acetate and polyester fabrics/liners
• Bedding
• Clothing
• Socks
• Fire-retardant work apparel
Wear loose fitting clothes if possible and avoid nylon stockings especially dark colors.
Wash new clothing or bed linens twice before use.
Wash all new clothes and bed linens three times before using.
Try to wear natural-based fabrics, silk, cotton, and wool.
Long sleeve white silk underwear can be worn if certain outer wear fabrics cannot be avoided.
Some patients with disperse dye allergy also react to para-phenylenediamine.
Patients allergic to a disperse dye should avoid polyester and acetate fabrics (and nylon, if possible). They should also avoid garments made from pure polyester, acetate blends, colored blue or dark colors like black, brown, green, violet and purple.
Levi Strauss 501 blue jeans usually do not cause dermatitis in dye-sensitive individuals.
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For additional information about products that might contain Basic Red 46, visit the Consumer Product Information Database. These lists are brief and provide just a few examples. They are not comprehensive. Product formulations also change frequently. Read product labels carefully and talk to your doctor if you have any questions. These are general guidelines. Talk to your doctor for more specific instructions.