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Screening compounds

Difezon

Also known as 2-(diphenylacetyl)-1H-indene-1,3(2H)-dione, 1-hydrazone, 2-Diphenylacetyl-1,3-indandione-1-hydrazone, (3Z)-2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one

CAS 5102-79-4Formula C23H18N2O2Molar mass 354.41 g/molEC 225-821-3
GHS signal word: Danger. Pictograms: Acute toxicity (severe), Hazardous to the environment
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Difezon chemical structure, C23H18N2O2, CAS 5102-79-4
2D chemical structure

Key facts

What buyers check first

All properties
CAS number
5102-79-4
Formula
C23H18N2O2
Molar mass
354.41 g/mol
EC number
225-821-3
HS code
292800
Category
Screening compounds

What is Difezon?

Plain description, key identifiers and synonyms

Difezon is a chemical substance with the molecular formula C23H18N2O2 and a molar mass of 354.41 g/mol. Its CAS registry number is 5102-79-4. The IUPAC name is (3Z)-2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one.

Identifiers

Registry numbers, names and line notations, tap to copy

IUPAC name
(3Z)-2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one
CAS number
5102-79-4
EC number
225-821-3
Molecular formula
C23H18N2O2
InChIKey
QBGMRRUHCFHZLC-NJNXFGOHSA-N
InChI
InChI=1S/C23H18N2O2/c24-25-21-17-13-7-8-14-18(17)22(26)20(21)23(27)19(15-9-3-1-4-10-15)16-11-5-2-6-12-16/h1-14,19-20H,24H2/b25-21+
Canonical SMILES
NN=C1c2ccccc2C(=O)C1C(=O)C(c1ccccc1)c1ccccc1
Isomeric SMILES
C1=CC=C(C=C1)C(C2=CC=CC=C2)C(=O)C3/C(=N/N)/C4=CC=CC=C4C3=O

Synonyms

  • 2-(diphenylacetyl)-1H-indene-1,3(2H)-dione, 1-hydrazone
  • 2-Diphenylacetyl-1,3-indandione-1-hydrazone
  • (3Z)-2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one
  • 1,3-Indandione, 2-(diphenylacetyl)-, 1-hydrazone
  • 1H-Indene-1,3(2H)-dione, 2-(diphenylacetyl)-, 1-hydrazone
  • 2-(Diphenylacetyl)-1H-indene-1,3(2H)-dione 1-hydrazone
  • 1, 2-(diphenylacetyl)-, 1-hydrazone
  • 1H-Indene-1, 2-(diphenylacetyl)-, 1-hydrazone
  • 2-(2,2-diphenylacetyl)-3-hydrazono-indan-1-one
  • 2-Diphenylacetyl-1,3-indandione-1-hydrazone, 98%
  • 2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one
  • 3-diazanylidene-2-(2,2-diphenylethanoyl)inden-1-one
  • 3-hydrazinylidene-2-(1-oxo-2,2-diphenylethyl)-1-indenone
  • 1-[3-(aminoazamethylene)-1-oxo(2-hydrocyclopenta[3,4-a]benzen-2-yl)]-2,2-diphe nylethan-1-one

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
354.41 g/molcalc.
Exact mass
354.1368 Dacalc.
LogP (octanol/water)
3.56calc.
Topological polar surface area
72.52 Ųcalc.
Hydrogen bond donors
1calc.
Hydrogen bond acceptors
4calc.
Rotatable bonds
4calc.
Heavy atoms
27calc.
Rings
4calc.
Aromatic rings
3calc.
Fraction sp3 carbons
0.09calc.
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, N=C1c2ccccc2C(=O)C1C(=O)C(c1ccccc1)c1ccccc1

N=C1c2ccccc2C(=O)C1C(=O)C(c1ccccc1)c1ccccc1

4 rings, 26 atoms.

10 other chemicals share this scaffold

Safety and hazards

GHS classification summary, not a safety data sheet

GHS signal word
Danger
GHS06: Acute toxicity (severe)
Acute toxicity (severe)
GHS09: Hazardous to the environment
Hazardous to the environment

Hazard statements

  • H301Toxic if swallowed.
  • H400Very toxic to aquatic life.
  • H410Very toxic to aquatic life with long lasting effects.
Precautionary statements (9)
  • P264Wash skin thoroughly after handling.
  • P270Do not eat, drink or smoke when using this product.
  • P273Avoid release to the environment.
  • P301 + P316If swallowed: Get emergency medical help immediately.
  • P321Specific treatment (see supplemental first aid instructions on the label).
  • P330Rinse mouth.
  • P391Collect spillage.
  • P405Store locked up.
  • P501Dispose of contents and container in accordance with local regulations.

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

Full safety data and first aid

Difezon suppliers

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Difezon 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 Difezon is traded under.

HS 2928.00Indicative HS code

Organic derivatives of hydrazine or of hydroxylamine

World exports in 2024
$1.38B
−9.0% vs 2023, imports $1.52B
2019 to 2024
Top exporters
  1. Switzerland * partner reported44.0%
  2. China18.4%
  3. Italy9.4%
Top importers
  1. Brazil21.8%
  2. United States12.8%
  3. Italy10.8%

* Partner reported figures, a lower bound.

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

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

Frequently asked questions

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

What is Difezon?

Difezon is a chemical substance with the molecular formula C23H18N2O2 and a molar mass of 354.41 g/mol. Its CAS registry number is 5102-79-4. The IUPAC name is (3Z)-2-(2,2-diphenylacetyl)-3-hydrazinylideneinden-1-one.

What is the CAS number of Difezon?

The CAS registry number of Difezon is 5102-79-4.

What is the molecular formula and weight of Difezon?

The molecular formula of Difezon is C23H18N2O2 and its molar mass is 354.41 g/mol.

What is Difezon used for?

Known uses and roles of Difezon include building blocks in research and laboratory and screening compounds in research and laboratory.

Is Difezon hazardous?

Difezon carries the GHS signal word "Danger". Main hazards: toxic if swallowed, very toxic to aquatic life, very toxic to aquatic life with long lasting effects. This summary is not an SDS, always read the supplier safety data sheet.

What is the HS code of Difezon?

Difezon is usually classified under HS code 292800 (Organic derivatives of hydrazine or of hydroxylamine). This is indicative, confirm it with your customs broker before shipping.

Where can I buy Difezon?

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What is the price of Difezon?

Suppliers quote Difezon 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 Difezon

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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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