C29H20O
384.5 g/mol
Research ReagentWarning
Tetraphenylcyclopentadienone
CAS479-33-4EC207-530-3
Category
Research Reagent
Compound Class
Aromatic
Primary Use
Research Compound
Tetraphenylcyclopentadienone is a deeply colored organic compound used as a research reagent in charge density studies. Its structure features a central cyclopentadienone ring substituted with four phenyl groups, giving it notable antiaromatic properties that are of interest in physical organic chemistry.
Research compound for charge density studiesModel compound for investigating cyclopentadienone antiaromaticity
Content scope: Information here supports chemical identification and industrial supply, research, and manufacturing contexts. It is not a therapeutic claim, medical advice, or drug-use instructions.
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Related Compounds
Safety Reference
Warning
H315Causes skin irritation
H319Causes serious eye irritation
H335May cause respiratory irritation
Customs Tariff Classification
The international HS code for Tetraphenylcyclopentadienone (CAS 479-33-4) is 2914.39.
HS code (international, 6-digit)
2914.39
EU CN code (8-digit)
2914 39 00
Classification per the EU customs inventory ECICS (2026-07 snapshot, HS 2022). National tariff lines and product form can affect the final classification.
Identifiers
IUPAC Name
2,3,4,5-tetraphenylcyclopenta-2,4-dien-1-one
InChIKey
PLGPSDNOLCVGSS-UHFFFAOYSA-N
SMILES
C1=CC=C(C=C1)C2=C(C(=O)C(=C2C3=CC=CC=C3)C4=CC=CC=C4)C5=CC=CC=C5
Synonyms (17)
- 2, 2,3,4,5-tetraphenyl-
- Cyclone
- Cyclone (compound)
- Tetracyclon
- Tetracyclone
- Tetraphenylcyclopentadienone
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