安裝中文字典英文字典辭典工具!
安裝中文字典英文字典辭典工具!
|
- The Difference Between Purines and Pyrimidines - ThoughtCo
A pyrimidine is an organic ring consisting of six atoms: 4 carbon atoms and 2 nitrogen atoms The nitrogen atoms are placed in the 1 and 3 positions around the ring Atoms or groups attached to this ring distinguish pyrimidines, which include cytosine, thymine, uracil, thiamine (vitamin B1), uric acid, and barbituates
- Pyrimidine - The Definitive Guide - Biology Dictionary
Pyrimidine is a simple aromatic ring composed of two nitrogen atoms and four carbon atoms, with hydrogen atoms attached to each carbon The carbon and nitrogen atoms are connected via alternating double and single bonds
- Pyrimidine- Definition, Properties, Structure, Uses - Microbe Notes
Pyrimidine is a cyclic organic compound with a ring of 6 atoms; four carbon atoms with attached hydrogen or side chain and 2 nitrogen atoms at -1, and -3 positions The carbon (C) and nitrogen (N) atoms are bonded by single and double bonds altering each other
- Pyrimidine | Nucleobases, DNA, RNA | Britannica
Pyrimidine, any of a class of organic compounds of the heterocyclic series characterized by a ring structure composed of four carbon atoms and two nitrogen atoms The simplest member of the family is pyrimidine itself, with molecular formula C4H4N2
- Purines and Pyrimidines - Science Notes and Projects
The name “pyrimidine” reflects the compound’s origin in the breakdown of organic materials at high temperatures (hence, “pyr” for fire) Just like purines, pyrimidines were first identified and isolated in the late 19th century
- Pyrimidine | C4H4N2 | CID 9260 - PubChem
Pyrimidine | C4H4N2 | CID 9260 - structure, chemical names, physical and chemical properties, classification, patents, literature, biological activities, safety hazards toxicity information, supplier lists, and more
- Pyrimidine - Definition and Examples - Biology Online Dictionary
Pyrimidine is a heterocyclic aromatic organic compound with a chemical formula of C 4 H 4 N 2 It has a single ring (called a pyrimidine ring) with alternating carbon and nitrogen atoms The molar mass of pyrimidine is 80 088 g mol and its melting point is at 20-22 °C
- Pyrimidine: Essential Building Block of DNA and RNA - Nanowerk
This diagram depicts the chemical structure of pyrimidine, a six-membered aromatic ring with two nitrogen atoms at positions 1 and 3 (highlighted in blue) The remaining positions are occupied by carbon atoms, forming the backbone of important nucleobases in DNA and RNA
|
|
|