Chemical substance record

Minoxidil

38304-91-5C₉H₁₅N₅O209.253 g/mol

Organic/Inorganic Small MoleculeChEBI source record

A pyrimidine N-oxide that is pyrimidine-2,4-diamine 3-oxide substituted by a piperidin-1-yl group at position 6. — ChEBI

Safety references

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Identity & molecular properties

Source-linked values

CAS number	38304-91-5	ChEBI ↗
Molecular formula	C₉H₁₅N₅O	ChEBI ↗
Molar mass	209.253 g/mol	ChEBI ↗
Monoisotopic mass	209.12766 Da	ChEBI ↗
Formal charge	0	ChEBI ↗
ChEBI identifier	CHEBI:6942	ChEBI ↗

Names & structural identifiers

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Source preferred name

minoxidil

IUPAC name

6-(piperidin-1-yl)pyrimidine-2,4-diamine 3-oxide

InChIKey

ZFMITUMMTDLWHR-UHFFFAOYSA-N

SMILES

Nc1cc(N2CCCCC2)nc(N)[n+]1[O-]

InChI

InChI=1S/C9H15N5O/c10-7-6-8(12-9(11)14(7)15)13-4-2-1-3-5-13/h6H,1-5,10H2,(H2,11,12)

Names & synonyms

6-(piperidin-1-yl)pyrimidine-2,4-diamine 3-oxideAlostilApo-GainLonoloxminoxidilumMinoximenNormoxidilRegaineRogaineTricoxidil

Names are supplied by ChEBI. Trade names and related synonyms may describe a broader product context.

Classification & relationships

ChEBI ontology

piperidinesChEBI parent class · 26151 ↗aminopyrimidineChEBI parent class · 38338 ↗pyrimidine N-oxideChEBI parent class · 50698 ↗

oxide organic heterocyclic compound organic molecular entity

Roles recorded in ChEBI

antineoplastic agentvasodilator agentantihypertensive agent

Database role annotations describe reported biological or chemical roles; they are not product approvals or recommendations for use.

Mass ↔ amount of substance

Calculated from sourced mass

Amount

Input unit

Equivalent amount

0.0047789 mol

Uses 209.253 g/mol from ChEBI. Assumes the substance described by this record; no purity or concentration correction is applied.

Elemental composition

Theoretical mass fractions

C

Carbon · 9 atoms

51.66%

N

Nitrogen · 5 atoms

33.47%

O

Oxygen · 1 atom

7.65%

H

Hydrogen · 15 atoms

7.23%

Calculated theoretical mass fractions from the reported formula and PubChem periodic-table atomic masses. These are not assay or purity results.

Research & patent references

Selected source associations

Minoxidil may suppress androgen receptor-related functions. ↗Oncotarget · 2014 Apr 30 · PMID 24742982

Acyclovir Has Low but Detectable Influence on HLA-B*57:01 Specificity without Inducing Hypersensitivity. ↗PloS one · 2015 · PMID 26024233

AU2012316063 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.

NL6615385 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.

RU2012112099 · Patent reference ↗Patent cross-reference supplied by ChEBI. Association alone does not establish claim scope.

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Sources & record history

Checked 27 Sep 2026

Identity, formula, mass, synonyms & ontologyEMBL-EBI ChEBI · CHEBI:6942

Release 255, 9 September 2026. ChEBI three-star (manually annotated) source entry. View original record ↗ · CC BY 4.0

PubCAS formats source data, connects references and computes explicitly labelled conversions. CAS cross-references are supplied by ChEBI; they do not constitute CAS verification or endorsement.

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