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What does the term CAS-No stand for on the material safety data sheet?
Wiki User
∙ 14y ago
The CAS number called for on a Material Safety Data Sheet is the Chemical Abstracts Service registry number of the material. The Chemical Abstracts Service issues a unique number to each chemical that is mentioned in a scientific article abstracted by the Chemical Abstracts Service, and also to some complex mixtures. The number has no intrinsic meaning; it merely points to a specific chemical. It's value is that it is an unambiguous reference to a chemical, whereas there are frequently more than a few ways of naming each chemical using words and structural descriptions.
Wiki User
∙ 14y ago
Wiki User
∙ 12y agoThe term "CAS Number on a Material Safety Data Sheet stands for "Chemical Abstracts Service Registry Number."
For many decades, the Chemical Abstracts Service has published the abstracts of scientific articles in the field of chemistry. Because there are many different ways of naming any particular chemical, the service began assigning Registry numbers to chemicals and using them in the abstracts to improve clarity. As a result of the many years of this activity, the CAS Number is a widely used means of clearly specifying a particular chemical.
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