2,2'-ANHYDROURIDINE

Formula:

C₉H₁₀N₂O₅

Mol.weight:

226.19

CAS No.:

[3736-77-4]

EINECS No.:

223-107-6

Description:

White crystalline powder

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.249nm,

A250/A260=1.30～1.40

ε=8,150±2%,PH7):

A280/A260=0.08～0.10

Melting point:

245℃～250℃

Loss on drying:

0.5%max.

Residue on ignition:

0.1%max.

Heavy metals(as Pb):

10ppm max.