胞嘧啶(C)(英語:cytosine),學名為2-羰基-4-氨基嘧啶[1],是組成DNA的四種基本鹼基之一。胞嘧啶核苷、胞嘧啶核苷酸均可作為升高白細胞(白血球)的藥物。可由2-硫脲嘧啶、濃氨水氯乙酸為原料合成製得。

  1. Cytosine 胞嘧啶. software.hfu.edu.tw. [2024-11-20].
Quick Facts 胞嘧啶, 識別 ...
胞嘧啶
IUPAC名
4-amino-3H-pyrimidin-2-one
識別
CAS號 71-30-7  checkY
PubChem 597
ChemSpider 577
SMILES
 
  • C1=C(NC(=O)N=C1)N
InChI
 
  • 1/C4H5N3O/c5-3-1-2-6-4(8)7-3/h1-2H,(H3,5,6,7,8)
InChIKey OPTASPLRGRRNAP-UHFFFAOYAY
ChEBI 16040
KEGG C00380
MeSH Cytosine
性質
化學式 C4H5N3O
摩爾質量 111.102 g·mol⁻¹
熔點 320 - 325℃(decomp)
若非註明,所有數據均出自標準狀態(25 ℃,100 kPa)下。
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