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.  

Item

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

The Characteristics and Uses：

One of essential amino acids in human body, material of various amino acids drip-feed; curing burn, trauma, taint and brawn- restoration before&after operation; taking part in NH4 metabolic activity and protecting liver.

Package and Transport：

Fibre drum double polyethylene bags inside (25kgs)

Storage：

Cool, dry, dark in closed containers, recommended limit 2 years.