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Ornithine

Drug
Ornithine is a non-proteinogenic α-amino acid that plays a role in the urea cycle. Ornithine is abnormally accumulated in the body in ornithine transcarbamylase deficiency. The radical is ornithyl. Wikipedia
Formula: C5H12N2O2
Classification: Amino acid
Acidity (pKa): 1.94
Chiral rotation (D): +11.5 (H2O, c = 6.5)
ECHA InfoCard: 100.000.665
Melting point: 140 °C (284 °F; 413 K)
Molar mass: 132.16 g/mol