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Cosmetic preservatives

Piroctone

Also known as Piroctona, Piroctonum, Piroctonol

CAS 50650-76-5Formula C14H23NO2Molar mass 237.34 g/mol
1 supplier listed Drug substance
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Piroctone chemical structure, C14H23NO2, CAS 50650-76-5
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
50650-76-5
Formula
C14H23NO2
Molar mass
237.34 g/mol
HS code
293339
Category
Cosmetic preservatives

What is Piroctone?

Plain description, key identifiers and synonyms

Piroctone is a cyclic hydroxamic acid that consists of 1-hydroxypyridin-2-one bearing methyl and 2,4,4-trimethylpentyl substtituents at positions 4 and 6 respectively. It has a role as an antiseborrheic. It is a cyclic hydroxamic acid, a pyridone and a hydroxypyridone antifungal drug.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2-one
CAS number
50650-76-5 CAS number cross-checked
Molecular formula
C14H23NO2
UNII
R49EFA73Q7
INCI name
PIROCTONE
InChIKey
OIQJEQLSYJSNDS-UHFFFAOYSA-N
InChI
InChI=1S/C14H23NO2/c1-10-6-12(15(17)13(16)8-10)7-11(2)9-14(3,4)5/h6,8,11,17H,7,9H2,1-5H3
SMILES (canonical and isomeric)
CC1=CC(=O)N(C(=C1)CC(C)CC(C)(C)C)O

Synonyms

  • Piroctona
  • Piroctonum
  • Piroctonol
  • 1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2(1H)-pyridone
  • 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2(1H)-one
  • Piroctonum (INN-Latin)
  • Piroctona (INN-Spanish)
  • 1-hydroxy-4-methyl-6(2,4,4-trimethylpentyl)-2-pyridone
  • 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)pyridin-2-one
  • 2(1H)-Pyridinone, 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-
  • Piroctone (USAN/INN)
  • 1-Hydroxy-4-methyl-6(2,4,4-trimethylpentyl) 2-pyridon
  • 1-hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2-pyridone
  • 1-Hyroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2(1H)-pyridone
  • 1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2(1H)-pyridinone #

Physical and chemical properties

Measured values and descriptors computed from the structure

Physical and chemical properties

Measured values, check the supplier specification for your grade

No measured properties are recorded for this substance yet. Ask suppliers for a technical data sheet.

Values vary by grade. Ask suppliers for the COA or TDS of the batch you buy.

Computed descriptors

Calculated from the structure, useful for screening and formulation

Molecular weight
237.34 g/molcalc.
Exact mass
237.1729 Dacalc.
LogP (octanol/water)
3.01calc.
Topological polar surface area
42.23 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
2calc.
Rotatable bonds
3calc.
Heavy atoms
17calc.
Rings
1calc.
Aromatic rings
1calc.
Fraction sp3 carbons
0.64calc.
Formal charge
0calc.
Stereocentres
1calc.
Lipinski rule of five
Passes (0 violations)calc.

Calculated for screening. Confirm critical figures with the supplier.

Murcko scaffold

The ring system that remains when every side chain is removed

Murcko scaffold of this chemical, O=c1cccc[nH]1

O=c1cccc[nH]1

1 ring, 7 atoms, the 2-Pyridone ring system.

7,761 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

No GHS hazard classification is recorded for this substance yet. That does not mean it is harmless.

GHS classification summary, not a safety data sheet (SDS). Classifications can differ by supplier, grade and concentration. Always check the supplier's SDS.

Piroctone suppliers

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Where suppliers are based

1 supplier in 1 country

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Piroctone price

Indicative price range per kg from live supplier offers

No published prices right now

Suppliers quote this chemical on request. Send one free request and compare quotes side by side.

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Uses and applications

What the substance is used for, by industry and function

Cosmetic ingredient, INCI name PIROCTONE(antimicrobial, preservative)

Roles

  • antiseborrheic
  • dermatologic drug
  • pharmaceutical

Cosmetic functions

  • Antimicrobial
  • Preservative

Regulatory status

Inventories, regulations and trade controls that list this substance

Health and food

  • EU cosmetic ingredient inventory
  • EU Cosmetics Regulation Annex V, allowed preservative
    Name: 1-Hydroxy-4-methyl-6-(2,4,4-trimethylpentyl)-2 pyridon, piroctone olamine, Ref no: 35, Annex ref: V/35
  • Active ingredient in FDA approved drug labels

HS code and trade data

Customs classification and reported world trade statistics

Global trade

World import and export statistics for the HS code Piroctone is traded under.

HS 2933.39Indicative HS code

Heterocyclic compounds containing an unfused pyridine ring (whether or not hydrogenated) in the structure…

World exports in 2024
$9.16B
−17.9% vs 2023, imports $10.6B
2019 to 2024
Top exporters
  1. China21.5%
  2. India * partner reported12.3%
  3. Ireland11.6%
Top importers
  1. Germany14.2%
  2. United States12.8%
  3. Brazil10.1%

* Partner reported figures, a lower bound.

Reported customs values in USD, not prices.Full trade data

The HS code shown for Piroctone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

Quick answers about Piroctone, based on the data on this page

What is Piroctone?

Piroctone is a cyclic hydroxamic acid that consists of 1-hydroxypyridin-2-one bearing methyl and 2,4,4-trimethylpentyl substtituents at positions 4 and 6 respectively. It has a role as an antiseborrheic. It is a cyclic hydroxamic acid, a pyridone and a hydroxypyridone antifungal drug.

What is the CAS number of Piroctone?

The CAS registry number of Piroctone is 50650-76-5.

What is the molecular formula and weight of Piroctone?

The molecular formula of Piroctone is C14H23NO2 and its molar mass is 237.34 g/mol.

What is Piroctone used for?

Known uses and roles of Piroctone include preservatives in cosmetics and personal care, antiseborrheic, dermatologic drug, pharmaceutical, antimicrobial and 1 more.

Is Piroctone hazardous?

No GHS hazard classification for Piroctone is recorded on CompoundList yet. That does not prove it is safe. Always read the supplier safety data sheet.

What is the HS code of Piroctone?

Piroctone is usually classified under HS code 293339 (Compounds containing an unfused pyridine ring (whether or not hydrogenated) in the…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Piroctone?

CompoundList lists 1 supplier of Piroctone in China. Send one free request to get and compare quotes. Your contact details stay private until you accept a quote.

What is the price of Piroctone?

Suppliers quote Piroctone on request because prices depend on grade, purity, quantity and destination. A free request on CompoundList gets you several quotes to compare.

Guides for buyers

Practical guides that help when you source, ship or handle Piroctone

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Data last updated 7 Oct 2026. Details may have changed, please confirm them with the supplier. Report an error on this page
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