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Reference.org
Guanidine
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<p>Guanidine is the compound with the formula HNC(NH2)2. It is a colourless solid that dissolves in <a href="/facts/Polar_molecule/KlIJ0zjB">polar</a> solvents. It is a <a href="/facts/Strong_base/M9wA7qeM">strong base</a> that is used in the production of <a href="/facts/Plastics/Kla5QItn">plastics</a> and <a href="/facts/Explosives/sUme5Pp8">explosives</a>. It is found in <a href="/facts/Urine/oNUYVtvX">urine</a> predominantly in patients experiencing <a href="/facts/Renal_failure/gsqb5nos">renal failure</a>. A guanidine <a href="/facts/Moiety_(chemistry)/WxKqcJe1">moiety</a> also appears in larger organic molecules, including on the side chain of <a href="/facts/Arginine/y49Hdf1e">arginine</a>. </p>