Definitions

1. noun

A substance that reacts with a developer to produce a colored product in a chemical test, such as a dye or pigment.

“The chromogen used in the experiment was found to produce a vibrant blue color when exposed to ultraviolet light.”

2. noun

A substance that is capable of producing a colored product when treated with a developer, such as an enzyme or a reagent.

“The chromogen in the enzyme reaction was responsible for the bright yellow color of the test solution.”