Cardiogreen is a low toxicic fluorescent agent, is a tricarbocyanine dye,has been widely used in medical diagnostics, such as determining cardiac output, hepatic function, and liver blood flow, and for ophthalmic angiography.

Glycocholic Acid is the product of conjugation of cholic acid with glycine. It is the chief ingredient of the bile of herbivorous animals.

Di-O-methylcrenatin is a natural product of Photinia, Rosaceae. Di-O-methylcrenatin can be used as a reference standard.