Hydroxy-L-Proline (non-animal) (trans-4-Hydroxy-L-Proline, L-4-Hydroxy-pyrrolidinecarboxylic acid)

A natural constituent of animal structural proteins such as collagen and elastin. Several microorganisms producing proline trans-4- and cis-3-hydroxylase were discovered and these enzymes were applied to the industrial production of trans-4- and cis-3-hydroxy-L-proline. Synonyms: L-Hyp-OH, (-)-4-Hydroxy-2-pyrrolidinecarboxylic Acid, (2S,4R)-(-)-4-Hydroxyproline, (R)-4-Hydroxy-(S)-proline, 4(R)-Hydroxy-2(S)-pyrrolidinecarboxylic Acid, 4-trans-Hydroxy-L-proline, L-Hypro, NSC 46704, CAS No: 51-35-4, Molecular Formula: C?H?NO?, Molecular Weight: 131.13, Appearance: White to off-white crystalline powder. Purity: >99%, pH: 5.0 to 6.5, Specific Rotation (C=4, H2O): -74.0° to -77.0°, Loss on Drying: <0.2%, Residue on Ignition: <0.1%, Ammonium: <0.02%, Chloride: <0.02%, Sulfate: <0.02%, Arsenic: <0.0001%, Heavy Metals (Pb): <0.001%, Endotoxin: <2Eu/mg, Melting Point:, >255°C (dec.), Solubility: Water (Slightly), Storage: 4°C, Under Inert Atmosphere, Meets or exceeds USP specifications.