L-Glutamine

L-Glutamine	CP2020	USP2023	USP32	FCC11	JSFA
Assay	≥99.0%	98.5-101.5%	98.5-101.5%	98.5-101.5%	98.0%～102.0%
PH	4.8 ～ 5.8	/	/	/	4.5～6.0
Specific rotation[a]D20	+6.3°-+7.3°	+6.3°-+7.3°	+6.3°-+7.3°	+6.3°-+7.3°	+6.3°-+7.3°
Specific rotation[a]D25	/	/	/	/	/
Transmittance(T430)	≥98.0%	/	/	/	Colorless and clear
Chloride(Cl)	≤ 0.02%	≤0.05%	≤0.05%	/	≤ 0.1 %
Ammonium(NH4)	≤ 0.10%	/	/	/	/
Sulfate(SO4)	≤ 0.02%	≤0.03%	≤0.03%	/	/
Iron(Fe)	≤ 10 PPM	≤30PPM	≤30PPM	/	/
Heavy metals(Pb)	≤ 10 PPM	/	≤15PPM	/	≤2PPM
Arsenic	≤1PPM	/	/	/	≤3PPM
Lead	/	/	/	≤5PPM	/
Other amino acids	Individual impurities≤0.5% Total impurities≤1.0%	≤0.5%	≤0.5%	/	/
Ninhydrin-positive substances	/	/	/	/	/
Insoluble foreign matter	/	/	/	≤50PPM	/
Loss on drying	≤ 0.30%	≤0.30%	≤0.30%	≤0.30%	≤0.30%
Residue on ignition	≤ 0.10%	≤0.30%	≤0.30%	≤0.10%	≤0.10%
Endotoxin	＜ 25 EU/g	＜ 25 EU/g	/	/	/
Total plate count	≤ 1000 CFU/g	≤ 1000 CFU/g	≤ 1000 CFU/g	≤ 1000 CFU/g	≤ 1000 CFU/g
Moulds & Yeasts	≤ 100 CFU/g	≤ 100 CFU/g	≤ 100 CFU/g	≤ 100 CFU/g	≤ 100 CFU/g

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