Rosolic acid paper, also known as resorcinol paper, is a specialized type of paper used in various scientific applications. It is coated with a compound called rosolic acid, which gives the paper its distinctive pink color. This paper is commonly used in analytical chemistry to detect the presence of certain metal ions, such as aluminum or bismuth. Furthermore, it is used in molecular biology techniques to stain nucleic acids and proteins. Besides being referred to as rosolic acid paper, it can also be known as resorcinol indicator paper or pink test paper. These terms are often used interchangeably to describe this valuable scientific tool.