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274658

Sigma-Aldrich

2,3,4,5-Tetramethyl-2-cyclopentenone, mixture of cis and trans

95%

Empirical Formula (Hill Notation):
C9H14O
CAS Number:
Molecular Weight:
138.21
Beilstein:
2324088
MDL number:
PubChem Substance ID:
NACRES:
NA.22

Quality Level

assay

95%

form

liquid

refractive index

n20/D 1.476 (lit.)

bp

100 °C/30 mmHg (lit.)

density

0.917 g/mL at 25 °C (lit.)

SMILES string

CC1C(C)C(=O)C(C)=C1C

InChI

1S/C9H14O/c1-5-6(2)8(4)9(10)7(5)3/h5,7H,1-4H3

InChI key

ARUAYSANQMCCEN-UHFFFAOYSA-N

Related Categories

Application

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[1].

Packaging

5, 25 g in glass bottle

Storage Class Code

10 - Combustible liquids

WGK

WGK 3

Flash Point(F)

163.4 °F - closed cup

Flash Point(C)

73 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Certificate of Analysis

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Certificate of Origin

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