|Color||Silky white crystals or white glistening needles or white crystalline powder, odourless, sublimes re|
|Solubility||Freely soluble in chloroform and in boiling water, Sparingly soluble in water and in ethanol (95%);|
|Appearance of solution||Solution should be clear and colourless.|
|Acetic acid content by HPLC||Not more than 5000 ppm|
Caffeine is a white, odourless and bitter-tasting crystalline powder with the chemical formula C8H10N4O2. It is soluble in water and alcohol, but insoluble in oil. Caffeine is used as a stimulant in a variety of products, including coffee, tea, soft drinks, and energy drinks. It is also used in some medications, such as pain relievers and weight loss supplements. Caffeine has been studied for a variety of other potential uses, including treating headaches, improving athletic performance, and protecting against Alzheimer's disease. Caffeine is generally safe for most people when consumed in moderation, but it can cause side effects such as anxiety, insomnia, and headaches in some people. Caffeine can also interact with certain medications.
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