Multiple choice

Which of the following dyes is used as a fluorescent stain?

  1. Rhodamine

  2. Auramine O

  3. Sulforhodamine 101

  4. Texas Red

Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

Auramine O, is a diarylmethane dye used as a fluorescent stain. In its pure form, Auramine O appears as yellow needle crystals. It is very soluble in water and soluble in ethanol.