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Heterocyclic compounds

Prifelone

Also known as Prifelona, Prifelonum, Methanone, (3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-2-thienyl-

CAS 69425-13-4Formula C19H24O2SMolar mass 316.47 g/mol
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Prifelone chemical structure, C19H24O2S, CAS 69425-13-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
69425-13-4
Formula
C19H24O2S
Molar mass
316.47 g/mol
HS code
293499
Category
Heterocyclic compounds

What is Prifelone?

Plain description, key identifiers and synonyms

Prifelone is an aromatic ketone.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3,5-ditert-butyl-4-hydroxyphenyl)-thiophen-2-ylmethanone
CAS number
69425-13-4 CAS number cross-checked
Molecular formula
C19H24O2S
UNII
0414BW860U
InChIKey
WAAVMZLJRXYRMA-UHFFFAOYSA-N
InChI
InChI=1S/C19H24O2S/c1-18(2,3)13-10-12(16(20)15-8-7-9-22-15)11-14(17(13)21)19(4,5)6/h7-11,21H,1-6H3
SMILES (canonical and isomeric)
CC(C)(C)C1=CC(=CC(=C1O)C(C)(C)C)C(=O)C2=CC=CS2

Synonyms

  • Prifelona
  • Prifelonum
  • Methanone, (3,5-bis(1,1-dimethylethyl)-4-hydroxyphenyl)-2-thienyl-
  • 2,6-di-tert-butyl-4-(2'-thenoyl)phenol
  • (3,5-Di-tert-butyl-4-hydroxy-phenyl)-thiophen-2-yl-methanone
  • (3,5-ditert-butyl-4-hydroxyphenyl)-thiophen-2-ylmethanone
  • 3,5-Di-tert-butyl-4-hydroxyphenyl 2-thienyl ketone
  • R 830, R 830 (antiinflammatory), R 830T, S 16820
  • Butafen
  • Prifelone (USAN/INN)
  • (3,5-Bis(1,1-dimethylethyl)-4-hydroxyphenyl)-2-thienylmethanone
  • 5-18-02-00065 (Beilstein Handbook Reference)
  • (3,5-di-tert-butyl-4-hydroxyphenyl)(thiophen-2-yl)methanone
  • 2,6-di-t-butyl-4-(2'-thenoyl)phenol

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
316.47 g/molcalc.
Exact mass
316.1497 Dacalc.
LogP (octanol/water)
5.28calc.
Topological polar surface area
37.3 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
2calc.
Heavy atoms
22calc.
Rings
2calc.
Aromatic rings
2calc.
Fraction sp3 carbons
0.42calc.
Formal charge
0calc.
Stereocentres
0calc.
Lipinski rule of five
Passes (1 violation)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=C(c1ccccc1)c1cccs1

O=C(c1ccccc1)c1cccs1

2 rings, 13 atoms, the 2-Benzoylthiophene ring system.

272 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.

Prifelone suppliers

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Prifelone price

Indicative price range per kg from live supplier offers

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Uses and applications

What the substance is used for, by industry and function

Regulatory status

Inventories, regulations and trade controls that list this substance

No regulatory list memberships are recorded for this substance yet. Always check the rules of the importing and exporting country before trade.

HS code and trade data

Customs classification and reported world trade statistics

Global trade

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

HS 2934.99Indicative HS code

Nucleic acids and their salts, other heterocyclic compounds, not elsewhere classified in heading 2934

World exports in 2024
$26.7B
+15.0% vs 2023, imports $26.3B
2019 to 2024
Top exporters
  1. Ireland26.3%
  2. China15.7%
  3. Singapore10.3%
Top importers
  1. United States24.5%
  2. Germany23.1%
  3. Japan4.5%
Reported customs values in USD, not prices.Full trade data

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

Frequently asked questions

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

What is Prifelone?

Prifelone is an aromatic ketone.

What is the CAS number of Prifelone?

The CAS registry number of Prifelone is 69425-13-4.

What is the molecular formula and weight of Prifelone?

The molecular formula of Prifelone is C19H24O2S and its molar mass is 316.47 g/mol.

What is Prifelone used for?

Known uses and roles of Prifelone include polymer antioxidants in plastics and polymers.

Is Prifelone hazardous?

No GHS hazard classification for Prifelone 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 Prifelone?

Prifelone is usually classified under HS code 293499 (Nucleic acids and their salts, whether or not chemically defined, other heterocyclic…). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Prifelone?

Post a free request on CompoundList and suppliers of Prifelone will send you quotes. Your contact details stay private until you accept a quote.

What is the price of Prifelone?

Suppliers quote Prifelone 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 Prifelone

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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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