Cytosine

• CAT Number: R008895
• CAS Number: 71-30-7
• Molecular Formula: C4H5N3O
• Molecular Weight: 111.104
• Purity: ≥95%
• Synonyms: 6-Amino-2(1H)-pyrimidinone; 4-Amino-1H-pyrimidin-2-one; 4-Amino-2(1H)-pyrimidinone; 4-Amino-2-hydroxypyrimidine; 4-Aminouracil; Cytosinimine; NSC 27787;?
• Target: Endogenous Metabolite
• Storage: -20°C
• IUPAC Name: 6-amino-1H-pyrimidin-2-one
• InChI: InChI=1S/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)
• InChIKey: OPTASPLRGRRNAP-UHFFFAOYSA-N
• SMILES: C1=C(NC(=O)N=C1)N

Cytosine (CAS 71-30-7) is one of the four main bases found in DNA and RNA, along with adenine, guanine, and thymine (uracil in RNA). Cytosine has been used for the preparation of nucleobase solutions  and the estimation of global methylation rate. It is also used as a standard for high-performance liquid chromat. 

Reference

1.Ussery, David W. "Encyclopedia of genetics." (2001).
2.Almohammed, Sawsan, Brian J. Rodriguez, and James H. Rice. "Nucleobase sensing using highly-sensitive surface-enhanced Raman spectroscopy templates comprising organic semiconductor peptide nanotubes and metal nanoparticles." Sensing and Bio-Sensing Research 24 (2019): 100287.
3.Ma, Qiuxiang, Wenzhi Zhou, and Peng Zhang. "Transition from somatic embryo to friable embryogenic callus in cassava: dynamic changes in cellular structure, physiological status, and gene expression profiles." Frontiers in plant science 6 (2015): 824.