Proline is an organic acid classed as a proteinogenic amino acid, although it does not contain the amino group -NH ₂ but is rather a secondary amine. The secondary amine nitrogen is in the protonated form under biological conditions, while the carboxyl group is in the deprotonated −COO⁻ form.
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L-Proline in pakistan
Formula: C₅H₉NO₂
Molar mass: 115.13 g/mol
Solubility: 1.5g/100g ethanol 19 degC
IUPAC ID: Proline
Melting point: 205 to 228 °C (401 to 442 °F; 478 to 501 K) (decomposes)
Acidity (pKa): 1.99 (carboxyl), 10.96 (amino)
Available: Unlimit
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