Cytosine
Cytosine (CAS: 71-30-7) is one of the four canonical nucleobases, supplied as a white crystalline powder.
It is a pyrimidinone bearing an exocyclic amino group, capable of Watson-Crick pairing with guanine, and it is a key building block for nucleoside, nucleotide and antisense chemistry as well as a standard substrate in enzymology.
Material for pharmaceutical use is 99% and kept dry; it is packed in drums or bags and stored at ambient temperature.
• Nucleoside and nucleotide chemistry: glycosylation and phosphorylation feedstock for analogue synthesis.
• Antiviral and anticancer intermediates: a scaffold for cytosine-based drugs such as cytarabine analogues.
• Biochemical reagents: a substrate and standard in polymerase, methyltransferase and deamination assays.
• Agricultural chemistry: used in nucleic acid derived plant growth regulators and antisense research.
Product Name: Cytosine
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