사이토신

C₄H₅N₃O

IUPAC: 4-Aminopyrimidin-2(1H)-one

CAS: 71-30-7

개요

Cytosine is a pyrimidine nucleobase that pairs with guanine in both DNA and RNA through three hydrogen bonds. In DNA, cytosine can be methylated (5-methylcytosine), which plays a key role in epigenetic gene regulation without changing the DNA sequence.

구성

원소 기호 원자 원자 질량
수소 H 5 1.0080
탄소 C 4 12.0110
질소 N 3 14.0070
산소 O 1 15.9990

원소 구성

H
4.5%
C
43.2%
N
37.8%
O
14.4%

용도

  • DNA/RNA base pair component
  • Epigenetics research (methylation)
  • Molecular biology
  • Genetic analysis

흥미로운 사실

  • Cytosine methylation is a key mechanism of epigenetics, allowing gene expression changes without DNA sequence changes

안전

  • ⚠ Low toxicity

구조

SMILES

C1=C(NC(=O)N=C1)N

성질

유형
organic
상태
solid
몰 질량
111.10 g/mol
밀도
1.5500 g/cm³
녹는점
320.0 °C
용해도
7.69 g/L at 25°C

분자 기술자

정확 질량
111.0433
XLogP
-1.7
TPSA
67.5 Ų
수소결합 주개
2
수소결합 받개
2
회전 가능 결합
0
중원자
8
복잡도
170.0

다른 이름

Cytosine

Frequently Asked Questions

What is 사이토신?
사이토신 (C₄H₅N₃O) is a organic compound with the IUPAC name 4-Aminopyrimidin-2(1H)-one.
What is the molecular weight of 사이토신?
사이토신 has a molar mass of 111.102 g/mol.
What state is 사이토신 at room temperature?
사이토신 is a solid at room temperature.
Is 사이토신 organic or inorganic?
사이토신 is classified as an organic compound.
What elements make up 사이토신?
사이토신 (C₄H₅N₃O) is composed of 수소 (H), 탄소 (C), 질소 (N), 산소 (O).