下载欧美少妇三级片,亚洲免费网址,元龙第四季免费观看全集在线观看,成人欧美在线观看

Welcome to Hebei Huaheng Biological Technology Co., Ltd!
Products
Contact
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:m.xdhedu.cn/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 value5.5~6.55.5~7.0
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.



本文地址：m.xdhedu.cn/en/products_15.html
           
上一個(gè)產(chǎn)品：L-Isoleucine
下一個(gè)產(chǎn)品：L-Methionine
Copyright：Hebei Huaheng Biological Technology Co., Ltd.
Address: No.777 Xinghua South Street,Jizhou City,Hebei Pro.,China Postal Code: 053200
TEL:0318-8628255
FAX:0318-8628286
E-mail:jizhouhuaheng@163.com
Web site:http://m.xdhedu.cn

WeChat public number
Link： 暫無(wú)友情鏈接 ! |