Note:  Do not rely on this information. It is very old.


Tyrosine, C9H11NO3, may be prepared synthetically by reactions which prove its constitution. It forms fine silky needles, colourless, tasteless, and odourless, insoluble in ether, and almost so in alcohol, but soluble in boiling water. It may be obtained from almost all animal substances by fusion with alkalies, and is found in many of the tissues of the human body, e.g. liver, spleen, pancreas.