URIDINE

Formula:

C₉H₁₂N₂O₆

Mol.weight:

244.21

CAS No.:

[58-96-8]

EINECS No.:

200-407-5

Description:

White crystalline powder

Clarity&color of solution:

Colorless and clear

Identification:

Conforms to the ref. IR spectrum

Purity(HPLC):

99.0%min.(area percent)

Assay(UV absorption):

98.0%min.(on dry basis)

Ratios(abs.max.262nm,

A250/A260=0.72～0.76

ε=10,100±2%,PH7):

A280/A260=0.34～0.38

Specific rotation:

Transparency:

98.0%min.(430nm, C=1,w/v, in H₂O)

Melting point:

165℃～170℃

Loss on drying:

0.5%max.(at 105℃/2h.)

Residue on ignition:

0.1%max.

Heavy metals(as Pb):

10ppm max.

Arsenic(AS2O3):

1ppm max.