Chemical Abstracts Service, a division of the American Chemical Society, announced that on September 7 it recorded the 50 millionth substance in CAS, the world's most comprehensive and high-quality ...

A chemical substance is a form of matter having constant chemical composition and characteristic properties. Some references add that chemical substance cannot be separated into its constituent ...

On June 21, 2018, the U.S. Environmental Protection Agency (EPA) issued guidance intended to “assist companies in creating structurally descriptive chemical names for chemical substances whose ...

Every country has a published controlled substance list, but the named substances are only common examples. The list also covers analogs and defined chemical space around these substances, which ...

All substances have properties. These describe how a substance looks and behaves. There are two types of properties: physical and chemical. Watch this video about how physical and chemical properties ...

The U.S. Environmental Protection Agency (EPA) announced on November 10, 2022, the availability of the final revision to the risk determination for the methylene chloride risk evaluation issued under ...

A copy of each specified type of health and safety study which is in their possession at the time the chemical substance is listed; A list of the specified types of health and safety studies known to ...

Chemical Reactions: A chemical reaction is a process where the substances 8unbdergo a change in their chemical composition. The substances that enter the reaction are called reactants that are then ...

Carcinogens, reproductive toxins, and chemicals with high acute toxicity are high-risk materials and are classified by OSHA as “Particularly Hazardous Substances.” In addition to chemicals classified ...