Is Adenine an Amino Acid? Adenine vs Adenosine and Nucleotides

No—adenine is not an amino acid. Adenine is a purine nucleobase identified as CAS 73-24-5 and C₅H₅N₅. 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.

Adenine classification: the short answer

Why “amino” does not mean “amino acid”

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.

Public identity references: ChEBI CHEBI:16708, NIST Chemistry WebBook és PubChem CID 190.

Adenine vs adenosine vs nucleotide

ChEBI defines adenosine as a molecule of adenine attached to ribofuranose. NHGRI defines a nucleotide as a sugar attached to both a phosphate group and a nitrogen-containing base.

Adenine structure and formula

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.

Adenine in DNA and RNA

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.

Common terminology mistakes to avoid

• Do not call adenine an amino acid merely because “amine” appears in its chemical name.
• Do not use adenine and adenosine as synonyms.
• Do not assign ATP’s energy-transfer role to free adenine as a health or performance benefit.
• Do not describe adenine as an antiviral because a different adenine analog or derivative has pharmacological activity.
• Do not use “Vitamin B4” to infer current vitamin, food, supplement or regulatory status.
• Do not treat generic melting point, solubility, appearance or hazard text from a webpage as the current Longchang specification or SDS.

Research and sourcing boundary

For a research reagent, synthesis input, medium component or other technical context, define the exact substance, intended protocol or transformation, purity/impurity needs, analytical methods and acceptance limits. A public database identity or literature mention does not establish grade, fitness, authorization or performance of a current commercial lot.

This page is not an SDS and does not give site-specific handling instructions. Request the current supplier SDS and combine it with the buyer’s local rules, process and risk assessment.

Use the correct Longchang page

• Read What is Adenine? Purine base, formula and role in DNA and RNA for the primary identity and biological-context answer.
• Use this page for “is adenine an amino acid,” formula-without-oxygen and adenine-versus-adenosine questions.
• Use the product page to request current specification, lot, document, sample and quotation information.

Request current Adenine documents

Open the Adenine CAS 73-24-5 product page to request the current specification, analytical methods, applicable lot COA, SDS status, sample availability, packaging, MOQ, current availability and confirmed lead time.

E-mail info@longchangchemical.com with the intended technical context, required tests and limits, quantity, packaging, destination and document requirements.