Product Detail

L-Proline	EP6	AJI92	USP40
Description	White or almost white, crystalline powder or colourless crystals.	White crystals or crystalline powder	/
Solubility	Very soluble in water,freely soluble in alcohol.	/	/
Identification	Conforms	Conforms	Conforms
Appearance of solution	Clarity of solution:5% water solution should be clear.	/	/
Appearance of solution	Colour of solution:5% water solution should be colourless.	/	/
Assay	98.5-101.0%	99.0%~101.0%	98.5%~101.5%
pH	/	5.9~6.9	/
Transmittance	/	≥98.0%	/
Loss on drying	≤0.5%	≤0.30%	≤0.4%
Residue on ignition	≤0.1%	≤0.10%	≤0.4%
Ninhydrin-positive	Conforms	/	/
Chloride	≤200ppm	≤0.020%	≤0.05%
Heavy Metals	≤10ppm	≤10ppm	≤15ppm
Iron	≤10ppm	≤10ppm	≤0.003%
Sulfate	≤300ppm	≤0.020%	≤0.03%
Endotoxin	/	/	/
Ammonium	≤200ppm	≤1ppm	/
Annonium	/	≤0.02%	/
Other amino acids	/	Conforms	Conforms
Pyrongen	/	Conforms	/
Specific Rotation	-84.0° to -86.0°	-84.5°~ -86.0°°	-84.3°~ -86.3°°