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  6. 2,3,4,5-Tetramethyl-2-cyclopentenone, cis + trans, 95%

2,3,4,5-Tetramethyl-2-cyclopentenone, cis + trans, 95%

Product Code. 11342167
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Product Code. 11342167 Supplier Thermo Scientific Alfa Aesar Supplier No. L09617.06
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Estimated Shipment: 28-09-2026
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Description

CAS: 54458-61-6 | C9H14O | 138.21 g/mol

2,3,4,5-Tetramethyl-2-cyclopentenone was used in the synthesis of chiral pre-ligands, (R)-3,3?-bis(tetramethylcyclopentadienyl)-2,2?-bismethoxy-1,1?-bisnaphthalene and (R)-3-tetramethylcyclopentadienyl-2,2?-bismethoxy-1,1?-bisnaphthalene by reacting with (R)-3,3?-dilithium-2,2?-bismethoxy-1,1?-bisnaphthalene.

This Thermo Scientific Chemicals brand product was originally part of the Alfa Aesar product portfolio. Some documentation and label information may refer to the legacy brand. The original Alfa Aesar product / item code or SKU reference has not changed as a part of the brand transition to Thermo Scientific Chemicals.

Applications
2,3,4,5-Tetramethyl-2-cyclopentenone was used in the synthesis of chiral pre-ligands, (R)-3,3′-bis(tetramethylcyclopentadienyl)-2,2′-bismethoxy-1,1′-bisnaphthalene and (R)-3-tetramethylcyclopentadienyl-2,2′-bismethoxy-1,1′-bisnaphthalene by reacting with (R)-3,3′-dilithium-2,2′-bismethoxy-1,1′-bisnaphthalene.

Solubility
Not miscible with water.

Notes
Incompatible with strong oxidizing agents. Store in cool place. Keep container tightly closed in a dry and well-ventilated place. Store away from oxidizing agents.
TRUSTED_SUSTAINABILITY

Chemical Identifiers

CAS 54458-61-6
Molecular Formula C9H14O
Molecular Weight (g/mol) 138.21
MDL Number MFCD00010248
InChI Key ARUAYSANQMCCEN-UHFFFAOYSA-N
Synonym 2,3,4,5-tetramethylcyclopent-2-enone, 2,3,4,5-tetramethyl-2-cyclopentenone, 2,3,4,5-tetramethyl-2-cyclopenten-1-one, 2-cyclopenten-1-one, 2,3,4,5-tetramethyl, 2,3,4,5-tetramethyl-2-cyclopentenone, cis + trans, tetramethylcyclopent-2-enone, pubchem15060, acmc-1asp4, 2,3,4,5-tetramethylcyclopentenone, 2,3,4,5-tetramethyl-cyclopent-2-enone
PubChem CID 41092
IUPAC Name 2,3,4,5-tetramethylcyclopent-2-en-1-one
SMILES CC1C(C(=O)C(=C1C)C)C

Specifications

Density 0.917
Boiling Point 99°C to 100°C (30 mmHg)
Flash Point 73°C (163°F)
Refractive Index 1.476
Quantity 5 g
Beilstein 2324088
Solubility Information Not miscible with water.
Formula Weight 138.21
Percent Purity 95%
Chemical Name or Material 2,3,4,5-Tetramethyl-2-cyclopentenone, Cis + Trans

RUO – Research Use Only

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