{"id":10663,"date":"2026-03-10T23:35:13","date_gmt":"2026-03-10T23:35:13","guid":{"rendered":"https:\/\/longchangextracts.com\/adenine-cas-73-24-5-complete-guide-to-this-essential-nucleobase\/"},"modified":"2026-08-04T08:28:41","modified_gmt":"2026-08-04T08:28:41","slug":"adenine-cas-73-24-5-complete-guide-to-this-essential-nucleobase","status":"publish","type":"post","link":"https:\/\/longchangextracts.com\/fr\/adenine-cas-73-24-5-complete-guide-to-this-essential-nucleobase\/","title":{"rendered":"Is Adenine an Amino Acid? Adenine vs Adenosine and Nucleotides"},"content":{"rendered":"
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Is Adenine an Amino Acid? Adenine vs Adenosine and Nucleotides<\/h1>\n

No\u2014adenine is not an amino acid.<\/strong> Adenine is a purine nucleobase identified as CAS 73-24-5 and C5<\/sub>H5<\/sub>N5<\/sub>. Adenosine is a different molecule formed from adenine plus ribose. A nucleotide contains a base, a sugar and phosphate group(s). The distinction matters in search, research records and procurement because adenine, adenosine, AMP, ADP, ATP and adenine analogs are not interchangeable materials.<\/p>\n

Adenine classification: the short answer<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
Question<\/th>\nAnswer<\/th>\nReason<\/th>\n<\/tr>\n<\/thead>\n
Is adenine an amino acid?<\/td>\nNo<\/td>\nChEBI classifies it as a purine nucleobase and 6-aminopurine<\/td>\n<\/tr>\n
Is adenine a protein?<\/td>\nNo<\/td>\nProteins are polymers of amino-acid residues; adenine is a nucleobase<\/td>\n<\/tr>\n
Is adenine a nucleoside?<\/td>\nNo<\/td>\nA nucleoside includes a base attached to a sugar<\/td>\n<\/tr>\n
Is adenine a nucleotide?<\/td>\nNo<\/td>\nA nucleotide includes a base, sugar and phosphate group(s)<\/td>\n<\/tr>\n
Is adenine a purine?<\/td>\nYes<\/td>\nIts fused-ring parent system is purine<\/td>\n<\/tr>\n
Is adenine one of the DNA\/RNA bases?<\/td>\nYes<\/td>\nNHGRI lists adenine in the base sets of both DNA and RNA<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

Why \u201camino\u201d does not mean \u201camino acid\u201d<\/h2>\n

Adenine’s systematic name, 9H-purin-6-amine, reflects an amino group attached to a purine ring. Having an amino group does not automatically make a molecule an amino acid. The ChEBI record defines adenine as the parent compound of the 6-aminopurines and identifies it as a purine nucleobase. Its formula, structure and chemical class differ from proteinogenic amino acids.<\/p>\n

Public identity references: ChEBI CHEBI:16708<\/a>, NIST Chemistry WebBook<\/a> et PubChem CID 190<\/a>.<\/p>\n

Adenine vs adenosine vs nucleotide<\/h2>\n
\n\n\n\n\n\n\n\n\n\n
Entity<\/th>\nComposition<\/th>\nExample identity<\/th>\nProcurement warning<\/th>\n<\/tr>\n<\/thead>\n
Adenine<\/td>\nPurine base<\/td>\nCAS 73-24-5; C5<\/sub>H5<\/sub>N5<\/sub><\/td>\nDo not add sugar or phosphate identifiers to its specification<\/td>\n<\/tr>\n
Adenosine<\/td>\nAdenine + ribose<\/td>\nCAS 58-61-7; a purine ribonucleoside<\/td>\nNot a synonym for adenine<\/td>\n<\/tr>\n
Deoxyadenosine<\/td>\nAdenine + deoxyribose<\/td>\nA distinct deoxyribonucleoside<\/td>\nDifferent formula, CAS and analytical profile<\/td>\n<\/tr>\n
AMP \/ ADP \/ ATP<\/td>\nAdenosine + one, two or three phosphate groups<\/td>\nAdenosine nucleotides<\/td>\n\u201cContains adenine\u201d does not mean \u201cis adenine\u201d<\/td>\n<\/tr>\n
Adenine analog or derivative<\/td>\nChemically modified adenine-related structure<\/td>\nMany possible substances<\/td>\nConfirm the exact structure and CAS; never transfer pharmacology by family name<\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

ChEBI defines adenosine<\/a> as a molecule of adenine attached to ribofuranose. NHGRI defines a nucleotide<\/a> as a sugar attached to both a phosphate group and a nitrogen-containing base.<\/p>\n

Adenine structure and formula<\/h2>\n
\n\n\n\n\n\n\n\n\n\n\n
CAS Registry Number<\/th>\n73-24-5<\/td>\n<\/tr>\n
IUPAC name<\/th>\n9H-purin-6-amine<\/td>\n<\/tr>\n
Formula<\/th>\nC5<\/sub>H5<\/sub>N5<\/sub><\/td>\n<\/tr>\n
Poids mol\u00e9culaire<\/th>\nAbout 135.13 g\/mol<\/td>\n<\/tr>\n
PubChem CID<\/th>\n190<\/td>\n<\/tr>\n
ChEBI ID<\/th>\nCHEBI:16708<\/td>\n<\/tr>\n
InChIKey<\/th>\nGFFGJBXGBJISGV-UHFFFAOYSA-N<\/td>\n<\/tr>\n
ChEBI SMILES<\/th>\nNc1ncnc2ncnc12<\/code><\/td>\n<\/tr>\n<\/tbody>\n<\/table><\/div>\n

The formula contains five nitrogen atoms and no oxygen atoms. The oxygen in adenosine or ATP belongs to the attached sugar and phosphate components. A database formula is an identity field, not a current supplier assay, impurity profile or lot release result.<\/p>\n

Adenine in DNA and RNA<\/h2>\n

NHGRI identifies adenine as one of the four bases in DNA and RNA. In double-stranded DNA, adenine bonds with thymine. In RNA, uracil is used instead of thymine in the base set. These statements explain the nucleobase’s biological context; they do not turn free Adenine CAS 73-24-5 into DNA, RNA, ATP, a supplement or a therapeutic product.<\/p>\n

Common terminology mistakes to avoid<\/h2>\n