appearance: white crystalline powder
cas: 59277-89-3
einecs: 261-685-1
mf: c8h11n5o3
mw: 225.20
items
|
specification
|
appearance
|
a white or almost white crystalline powder
|
identification
|
meets the requirements
|
appearance of solution
|
meets the requirements
|
sulphated ash
|
≤0.1%
|
water
|
≤6.0%
|
ordinary impurities(tlc)
|
≤1.0%
|
related substances (hplc)
|
|
limit for guanine
|
≤0.7%
|
single impurity
|
≤0.1%
|
total impurities
|
≤1.0%
|
assay (on dried basis)
|
98.5 ~ 101.0%
|
standard
|
ep5
|
usage:
the material is purine nucleoside derivatives of dna synthesis inhibition, anti-herpes virus activity 160 times than sugar adenosine. for clinical herpes simplex virus encephalitis, herpes keratitis and genital infections, aids varicella zoster virus infection and cytomegalovirus infection, chronic hepatitis