Form
Powder
Appearance
White or almost white crystalline powder
Source
Synthetic
Assay
98.5-101.0% (on dried basis)
Loss on Drying
≤1.5%
Residue On Ignition
≤0.1%
Heavy Metals
≤0.002%
5-fluorocytosine is a sparingly soluble (10.5 mg/mL) fluorinated cytosine (pyrimidine) analog.
2022-85-7
C4H4FN3O
129.09
5-fluorocytosine is taken up by the fungus and is converted to 5-fluorouracil. During transcription, the pyrimidine analog is incorporated into the RNA which inhibits subsequent rounds of transcription.
2-8°C, store protected from light.
2933.59.3600
5-fluorocytosine targets primarily Candida and Cyptococcus species.
Powder
White or almost white crystalline powder
Synthetic
98.5-101.0% (on dried basis)
≤1.5%
≤0.1%
≤0.002%