Answer :

formula for haemoglobin is "C2952 H4664 O832 N812 S8 Fe4"
   formula for melamine       "C3H6N6"
Melamine does not forms in human body while haemoglobin are formed inside human body.
haemoglobin has iron/ferrous while melamine dosen't
haemoglobin has sulphur and oxygen while melamine dosen't.

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