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Cytidine

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Description

Formula: C9H13N3O5

Mol. weight: 243.22

CAS No.: [65-46-3]

EINECS No.: 200-610-9

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): 8.0%～102.0%(on dry basis)

Ratios(abs.max.280nm, A250/A260=0.41～0.49
ε=13,000±%,PH1): A280/A260=2.05～2.15

Transparency: 98.0%min.(430nm, C=1,w/v, in H2O)

Melting point: 210℃～217℃

Loss on drying: 0.5%max.(at 105℃/5h.)

Residue on ignition: 0.1%max.

Heavy metals(as Pb ): 10ppm max.

Arsenic(AS2O3): 1ppm max.

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