L-Proline is an amino acid and precursor (with vitamin C) for collagen, the building block of the structure of tendons, ligaments, arteries, veins and muscles. It is important in wound healing.

Synonyms:
(-)-2-Pyrrolidinecarboxylic Acid; (-)-Proline; (S)-(-)-Proline; (S)-2-Carboxypyrrolidine; (S)-2-Pyrrolidinecarboxylic Acid; (S)-Proline; 2-Pyrrolidinecarboxylic Acid; 2-Pyrrolidinecarboxylic Acid, (S)-; 28: PN: US20080058276 PAGE: 11 Claimed Protein; Carboxypyrrolidine; L-(-)-Proline; L-Pyrrolidine-2-carboxylic Acid; L-α-Pyrrolidinecarboxylic Acid; NSC 46703; Proline

CAS No:
147-85-3

Molecular Formula:
C5H9NO2

Molecular Weight:
115.13

Purity:
≥99%

Appearance:
White crystalline powder

Solubility:
Colorless, clear, complete

pH:
5.9-6.9

Specific Rotation:
-84.5° to -86.0°

Identification (IR):
Conforms to reference

Chloride:
≤0.05%

Sulfate:
≤0.03%

Iron:
≤0.003%

Loss on Drying:
≤0.3%

Residue on Ignition:
≤0.1%

Endotoxin:
≤2EU/mg

Total Plate Count:
≤1000cfu/g

Yeasts & Mold:
≤100cfu/g

E. coli:
Negative

Salmonella:
Negative

Meets or exceeds USP specifications.