L-Histidine Cas 147-85-3 L-Proline

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L-proline (referred to as proline) is one of the twenty amino acids used for protein synthesis in the human body. It is colorless to white crystals or crystalline powder at room temperature. It has a slight odor and a slightly sweet taste. It is easily soluble in water and ethanol. Insoluble in ether, butanol and isopropyl alcohol, soluble in inorganic acids. Amino acids are the general name for a class of organic compounds containing amino and carboxyl groups. The presence of amino acids in the human body not only provides important raw materials for protein synthesis, but also provides a material basis for promoting growth, normal metabolism, and maintaining life.

Common Name Proline
CAS Number 147-85-3
Molecular Weight 115.131
Density 1.2±0.1 g/cm3
Boiling Point 252.2±33.0 °C at 760 mmHg
Molecular Formula C5H9NO2 Melting Point 228 °C (dec.)(lit.)
Flash Point 106.3±25.4 °C



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