Arthritis means joint inflammation.. It causes pain and swelling in the body's joints, such as the knees or hips. There are many types of arthritis, but osteoarthritis is the most common. Also known as degenerative joint disease or age-related arthritis, osteoarthritis is more likely to develop as people get older.
Hydrogen cyanide (HCN), sometimes called prussic acid, is a chemical compound with the chemical formula HCN. It is a colorless, extremely poisonous and inflammable liquid that boils slightly above room temperature, at 25.6 Â°C (78.1 Â°F).
A CAS Registry Number is a numeric identifier that can contain up to 10 digits, divided by hyphens into three parts. The right-most digit is a check digit used to verify the validity and uniqueness of the entire number.For example, 58-08-2 is the CAS Registry Number for caffeine.ach CAS Registry Number (often referred to as a CAS Number): 1  Is a unique numeric identifier. 2  Designates only one substance. 3  Has no chemical significance. 4  Is a link to a wealth of information about a specific chemical substance.