Chemistry
In chemical terms, creatinine is a spontaneously formed cyclic derivative of creatine. Several tautomers of creatinine exist; ordered by contribution, they are:
- 2-Amino-1-methyl-1H-imidazol-4-ol (or 2-amino-1-methylimidazol-4-ol)
- 2-Amino-1-methyl-4,5-dihydro-1H-imidazol-4-one
- 2-Imino-1-methyl-2,3-dihydro-1H-imidazol-4-ol (or 2-imino-1-methyl-3H-imidazol-4-ol)
- 2-Imino-1-methylimidazolidin-4-one
- 2-Imino-1-methyl-2,5-dihydro-1H-imidazol-4-ol (or 2-imino-1-methyl-5H-imidazol-4-ol)
Creatinine starts to decompose around 300°C.
Read more about this topic: Creatinine
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