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Structure Formula：

Molecular Formula：

C11H12N2O2

Molecular Weight：

204.23

Cas No：

[73-22-3]

Characteristics：

Quality Standards：

FCCIV, USP24 and etc.

USP24

FCCIV

Appearance

White crystals or crystalline powder

Assay,%(on dry matter)

98.5~101.5

98.5~101.5

Specific optical rotation

-29.4o ~ -32.8o

-30.0o ~ -33.0o

pH Value

5.5~7.0

- - -

Loss on drying, %

≤0.3

≤0.3

Heavy Metals (as Pb), %

≤0.0015

≤0.002

Residue on ignition, %

≤0.1

≤0.1

Chloride (as Cl),%

≤0.05

- - -

Sulfate (as SO4), %

≤0.03

- - -

Arsenic (as As), %

≤0.00015

≤0.00015

Iron, %

≤0.003

- - -

Package and Transport：

　　Packed with a polyethylene bag for the inner layer and a Kraft paper board barrel for the outer layer, net weight 25kg/drum. Packaging may be arranged according to the requirement of the client.

　　Handle with care in order to avoid damaging the package. Protect them from sunshine and rain. Do not transport them together with poisonous or harmful goods. This product is a non-dangerous product and can be transported as a general chemical product.

Storage：

　　Store in cool, shaded, dry and clean places. Do not store it together with poisonous or harmful goods in order to avoid pollution. The limit of retained quality for two years.