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Screening compounds

Nifenazone

Also known as Niapyrin, Nicophezon, Nikofezon

CAS 2139-47-1Formula C17H16N4O2Molar mass 308.34 g/molEC 218-387-1
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Nifenazone chemical structure, C17H16N4O2, CAS 2139-47-1
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
2139-47-1
Formula
C17H16N4O2
Molar mass
308.34 g/mol
EC number
218-387-1
HS code
293339
Category
Screening compounds

What is Nifenazone?

Plain description, key identifiers and synonyms

Nifenazone is a member of pyrazoles and a ring assembly.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)pyridine-3-carboxamide
CAS number
2139-47-1 CAS number cross-checked
EC number
218-387-1
Molecular formula
C17H16N4O2
UNII
8780F0K71U
MDL number
MFCD00214069
InChIKey
BRZANEXCSZCZCI-UHFFFAOYSA-N
InChI
InChI=1S/C17H16N4O2/c1-12-15(19-16(22)13-7-6-10-18-11-13)17(23)21(20(12)2)14-8-4-3-5-9-14/h3-11H,1-2H3,(H,19,22)
SMILES (canonical and isomeric)
CC1=C(C(=O)N(N1C)C2=CC=CC=C2)NC(=O)C3=CN=CC=C3

Synonyms

  • Niapyrin
  • Nicophezon
  • Nikofezon
  • N-Antipyrinylnicotinamide
  • Nifenazona
  • Nifenazonum
  • N-(1,5-dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)pyridine-3-carboxamide
  • Phenicazone
  • Nifenazon
  • Thylin
  • Nicazane
  • Nicodone
  • Nicofesone
  • Nicophesone
  • Nicotazone
  • Nicopyron
  • Nicoreumal
  • Nicoron
  • Nicozone
  • Nikodon
  • Anicotinoylantipyrine
  • Nicotinoylaminoantipyrine
  • 4-(Nicotinamido)antipyrine
  • Nicotinamide, N-antipyrinyl-
  • 4-(Nicotinoylamino)antipyrine
Show all 37 synonyms
  • Nicotinic acid 4-antipyrilamide
  • N-(1,5-dimethyl-3-oxo-2-phenylpyrazol-4-yl)pyridine-3-carboxamide
  • Nicotinamide, N-(2,3-dimethyl-5-oxo-1-phenyl-3-pyrazolin-4-yl)-
  • Nicotinic acid, amidophenyldimethylpyrazolone
  • N-(2,3-Dihydro-1,5-dimethyl-3-oxo-2-phenyl-1H-pyrazol-4-yl)-3-pyridinecarboxamide
  • 4-Nicotinoylamido-1-phenyl-2,3-dimethyl-5-pyrazolone
  • Nicotinsaeureamidophenyldimethylpyrazolons
  • N-(1,5-Dimethyl-3-oxo-2-phenyl-2,3-dihydro-1H-pyrazol-4-yl)nicotinamide
  • Dolongan
  • Niprazine
  • Reupiron
  • 1,5-Dimethyl-4-nicotinamido-2-phenyl-3-pyrazolone

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
308.34 g/molcalc.
Exact mass
308.1273 Dacalc.
LogP (octanol/water)
2.13calc.
Topological polar surface area
68.92 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
3calc.
Rotatable bonds
3calc.
Heavy atoms
23calc.
Rings
3calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.12calc.
Formal charge
0calc.
Stereocentres
0calc.
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=C(Nc1c[nH]n(-c2ccccc2)c1=O)c1cccnc1

O=C(Nc1c[nH]n(-c2ccccc2)c1=O)c1cccnc1

3 rings, 21 atoms.

5 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.

Nifenazone suppliers

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Suppliers marked Unclaimed profile have not claimed their profile yet. They are not verified by CompoundList, their offers are price on request and details may have changed, so please confirm them with the supplier. Company representatives can claim a profile with a business email on the company's own website domain. Our team verifies each claim and sends the result by email.

Where suppliers are based

1 supplier in 1 country

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Nifenazone 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

Pharmacological actions

  • Anti-Inflammatory Agents, Non-Steroidal

Roles

  • analgesic
  • pharmaceutical

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 Nifenazone 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 Nifenazone is indicative (it was assigned by structure rules). Confirm the classification with your customs broker before shipping.

Frequently asked questions

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

What is Nifenazone?

Nifenazone is a member of pyrazoles and a ring assembly.

What is the CAS number of Nifenazone?

The CAS registry number of Nifenazone is 2139-47-1.

What is the molecular formula and weight of Nifenazone?

The molecular formula of Nifenazone is C17H16N4O2 and its molar mass is 308.34 g/mol.

What is Nifenazone used for?

Known uses and roles of Nifenazone include building blocks in research and laboratory, screening compounds in research and laboratory, analgesic, pharmaceutical and anti-inflammatory agents, non-steroidal.

Is Nifenazone hazardous?

No GHS hazard classification for Nifenazone 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 Nifenazone?

Nifenazone 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 Nifenazone?

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

What is the price of Nifenazone?

Suppliers quote Nifenazone 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 Nifenazone

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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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