Hypo xanthin

(hi-po-zan’ ’-thin) [vrro, under; t-avftoq, yellow], C5H4N40. A nonpoisonous leukoma in, also known as sarcin or sark in. It occurs, accompanying adenin and guanin, in nearly all the animal ti ues and organs rich in nucleated cells. In minute quantities it is a normal constituent of urine. It has also been found in plants, seeds, ferments, and wines. It is a crystalline body, soluble in cold and boiling water, insoluble in cold alcohol or ether. Hypo xanthin appears to be one of the products formed by the decomposition and succe ive oxidation of proteid matter previous to the formation of uric acid and urea. It is produced from adenin by the action of nitrous acid. 325