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L-PHENYLALANINE
Chemical Name: (s)-2-Amino-3-phenylpropanoic acid
Structure Formula:
Molecular Formula: C9H11NO2
Molecular Weight: 165.19
Cas No: [63-91-2]
Characteristics: White crystals or crystalline powder; slightly bitter taste. Feely soluble in formic acid, sparingly soluble in water.
Quality Standards: USP24, FCCIV Item USP24 FCCIV
Identification Infrared absorption spectrum
Specific rotation [a]D25 32.7 34.7 -33.0- -35.2
Loss on drying 0. 3 % 0.3%
Residue on ignition 0. 4 0% 0.1%
Sulfate 0.03% ---
Iron 0.003% ---
Heavy metals ?ü 0.0015% ?ü 5PPm (lead)
Organic volatile impurities Meets the requirements ---
Chloride 0.05 % ---
Assay 98.5-101.5% 98.5-101.5%
Arsenic (As2O3) --- ---
State of solution --- ?Y 95%
PH 5.4-6.0 5.0-6.0
Packaging and Storage: In 25kgs f iber drum double polyethylene bags inside or 25kgs paper bags; Preserve in well- closed containers, at controlled room temperature.
Recommended limit: 2 year.