CAS can refer to different things depending on the context. Here are some possible meanings of CAS:
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CAS REGISTRY: It is the most authoritative collection of disclosed chemical substance information. CAS REGISTRY covers substances identified from the scientific literature from 1957 to the present, with additional substances going back to the early 1900s. Each substance in the registry is assigned a unique identifier called a CAS Registry Number (CAS RN), which is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts.
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Childhood Apraxia of Speech (CAS): It is a specific type of speech sound disorder in which the planning and/or programming of the movements to produce speech is inefficient. Children with CAS may know what they want to say, but their mouth may not move the way it needs to in order to say words clearly.
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Chemical Abstracts Service (CAS): It is a division of the American Chemical Society (ACS) that identifies, aggregates, and organizes all publicly disclosed chemistry information, creating the worlds most valuable collection of content that is vital to innovation worldwide. Scientific researchers, patent professionals, and business leaders around the world rely on a suite of research solutions from CAS to enable discovery and fuel innovation.
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Creativity, Activity, and Service (CAS): It is one of the three essential elements that every student must complete as part of the Diploma Programme (DP) of the International Baccalaureate (IB) . CAS involves students in a range of activities alongside their academic studies, such as arts, physical exertion, and voluntary service. Although it is not formally assessed, students reflect on their CAS experiences as part of the DP and provide evidence of achieving the seven learning outcomes for CAS.
