Guanine

• CAT Number: R046365
• CAS Number: 73-40-5
• Molecular Formula: C₅H₅N₅O
• Molecular Weight: 151.13
• Purity: ≥95%
• Synonyms: 2-Amino-1,9-dihydro-6H-purin-6-one; 2-Amino-6-hydroxy-1H-purine; 2-Amino-6-hydroxypurine; 2-Aminohypoxanthine; 9H-Guanine; 2-Amino-hypoxanthine; Acyclovir Impurity B
• Target: Metabolic Enzyme/Protease
• Storage: -20°C
• IUPAC Name: 2-amino-1,7-dihydropurin-6-one
• InChI: InChI=1S/C5H5N5O/c6-5-9-3-2(4(11)10-5)7-1-8-3/h1H,(H4,6,7,8,9,10,11)
• InChIKey: UYTPUPDQBNUYGX-UHFFFAOYSA-N
• SMILES: C1=NC2=C(N1)C(=O)NC(=N2)N

Guanine (Cat No.: R046365) is a naturally occurring purine base with the molecular formula C₅H₅N₅O, essential for the structure of nucleic acids. It pairs with cytosine in DNA and RNA through three hydrogen bonds, contributing to genetic stability. Found in both DNA and RNA, guanine plays a critical role in encoding genetic information and supporting enzymatic functions. It also appears in guanosine triphosphate (GTP), a key molecule in energy transfer and signaling. Guanine’s planar structure and hydrogen-bonding capacity enable precise base pairing and molecular recognition.