
Reactive Blue 49 is a monochlorotriazine (MCT) reactive dye from the anthraquinone class. It produces a reddish-blue shade and is designed for “cold brand” applications, making it suitable for dyeing cellulosic fibres at lower temperatures. Its anthraquinone structure provides a clean, pure shade with good stability. It is a reliable and versatile choice for exhaust dyeing and printing where a specific reddish-blue hue is desired.