Chemical information refers to data and knowledge about chemical substances, including their properties, structures, and behaviors. This information is essential for understanding how chemicals interact with each other and with the environment. It encompasses details such as molecular formulas, boiling points, and toxicity levels, which are crucial for safety and regulatory compliance. Sources of chemical information include databases, scientific literature, and regulatory agencies. Tools like PubChem and ChemSpider provide access to extensive chemical data, while organizations like the Environmental Protection Agency (EPA) ensure that information about hazardous substances is available to the public. This knowledge supports research, industry practices, and public health initiatives.