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Hebei Huaheng Biological Technology Co., Ltd
Address: No.777 Xinghua South Street,Jizhou City,Hebei Pro.,China Postal Code: 053200
Postal Code: 053200
TEL:0318-8628255
FAX:0318-8628286
E-mail:jizhouhuaheng@163.com
Web site:www.tongshuovalve.com/en

Current position： Products > Amino Acid > L-Leucine

L-Leucine

Amino Acid

L-Leucine

Chemical Name：	(S)-2-Amino-4-methylpentanoic acid
Structure Formula：
Molecular Formula：	C6H13NO2
Molecular Weight：	131.17
Cas No：	[61-90-5]
Characteristics：	White crystals or crystalline powder. Odorless, slightly bitter taste. Freely soluble in formic acid, sparingly soluble in water, very slightly soluble in ethanol or in ether, dissolves in dilute hydrochloric acid.
Quality Standards：	USP24, AJI92 and etc.

tem	AJI92	USP24
Assay, %	98.5~100.5	98.5~100.5
pH value	5.5~6.5	5.5~7.0
Specific rotation[a]D20o	+14.9o~+16.0o	+14.9o~+17.3o
Chloride (CI) , %	≤0.02	≤0.05
Ammonium (NH4), %	≤0.02	- - -
Sulfate (SO4), %	≤0.02	≤0.03
Iron (Fe), %	≤0.001	≤0.003
Heavy metals, %	≤0.001	≤0.0015
Arsenic, %	≤0.0001	- - -
Other amino acids,	Not detd.	- - -
Loss on drying, %	≤0.2	≤0.2
Residue on ignition, %	≤0.1	≤0.4
Organic volatile impurities, %	- - -	Conforms


Package and Transport：	Fibre drum double polyethylene bags inside (25kgs)
Storage：	Cool, dry, dark in closed containers, recommended limit 2 years.

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