L-Leucine

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Product Name: L-Leucine
Batch No.: LC******
Quality: USP24（Hydrolyzation and Fermentation）
Shelf Life: 2years

Tests	Limits	Test results
Description	White crystals or crystalline powder	crystalline powder
Identification （ IR ）	Concordant with the reference spectrum	Concordant with the reference spectrum
Assay	98.5 ～ 101.5%	99 .4 %
Specific rotation	14.9° ～ 17.3°	15. 5°
PH	5.5-7.0	6. 7
Chloride	≤0.05%	<0.05%
Sulfate(SO4)	≤0.03%	<0.03%
Iron	≤30ppm	<30ppm
Heavy metals(Pb)	≤15ppm	<15ppm
Loss on drying	≤0.20%	0. 16 %
Residue on ignition	≤0.40%	0. 13 %
Organic volatile impurities	Meet the requirements	Meet the requirements

Product Name: L-Leucine
Batch No.: LC******
Quality: USP37（Hydrolyzation and Fermentation）
Shelf Life: 2years

Tests	Limits	Test results
Description	White crystals or crystalline powder	crystalline powder
Identification （ IR ）	Concordant with the reference spectrum	Concordant with the reference spectrum
Assay	98.5 ～ 101.5%	99 .4 %
Specific rotation	14.9° ～ 17.3°	15. 5°
PH	5.5-7.0	6. 7
Chloride	≤0.05%	<0.05%
Sulfate(SO4)	≤0.03%	<0.03%
Iron	≤30ppm	<30ppm
Heavy metals(Pb)	≤15ppm	<15ppm
Arsenic(As)	≤1ppm	﹤ 1ppm
Loss on drying	≤0.20%	0. 16 %
Residue on ignition	≤0.40%	0. 13 %
Other amino acids	≤0.5%	＜ 0.5%
Organic volatile impurities	Meet the requirements	Meet the requirements