### Question
What is the definition of chemical mixture?


### Answer
The definition of **chemical mixture** is as follows in *21 CFR § 1300.02*:

> a combination of two or more chemical substances, at least one of which is not a listed chemical, except that such term does not include any combination of a listed chemical with another chemical that is present solely as an impurity or which has been created to evade the requirements of the Act.

#### Citation:
  - *21 CFR § 1300.02*
  - Heading: **Title 21-Food and Drugs > PART 1300—DEFINITIONS**

