Empirical formula:

C₉H₁₁N₂O₉PNa

Molecular weight:

368.15

CAS No:

3387-36-8

Description:

White crystalline powder

Loss on drying(120℃/5h):

Not more than 25%

UV spectrum(Abs. max at 262nm, ε=10000±2%, pH7.0

A250/A260

0.71-0.77

A280/A260

0.36-0.40

Assay(UV spectrophotom. Calc.on dry basis):

Not less than 97.0%

HPLC

Conforms to standard,other nucleotides not detected

Heavy metals(as Pb):

Not more than 10mg/Kg

As:

Not more than 2mg/Kg

Transmission(430nm, c=1%, in H₂O):

Not less than 95.0%

Microbiological Requirements

Bacterial count:

Not more than 1000CFU/g

Yeast and molds:

Not more than 10CFU/g

Coliform germs:

Negative for 1g

Staphylococcus:

Negative for 1g

Salmonella:

Negative for 1g

Storage/Stability:

Stable at room temperature, when stored in tightly closed containers, protected from light and humidit