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C5H4N4O3

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Originally appearing in Volume V01, Page 688 of the 1911 Encyclopedia Britannica.
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C5H4N4O3 + See also:

H2O + 0 s C4H6N4O3 + See also:CO2. It has been synthesized by E. Grimaux by See also:heating one See also:part of glyoxylic See also:acid with two parts of See also:urea for ten See also:hours at too° C.: 2CO(See also:NH2)2+ CH(OH)2COOH= 3H20 + C4H6N4O3. It forms glancing prisms of neutral reaction slightly soluble in See also:water. On See also:standing with concentrated See also:potassium hydroxide See also:solution it gives potassium allantoate C4H7N4O4K. On heating with water it undergoes See also:hydrolysis into urea and allanturic acid CsH4O3N2. It is reduced by See also:sodium See also:amalgam to glycouril C4H6N4O2, whilst with hydriodic acid it yields urea and See also:hydantoin C3H4N2O2. Hot concentrated sulphuric acid also decomposes See also:allantoin, with See also:production of See also:ammonia, and See also:carbon monoxide and dioxide. By dry See also:distillation it gives ammonium See also:cyanide.

End of Article: C5H4N4O3

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