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Safety Information

304190

Sigma-Aldrich

2-Methyl-2-cyclopenten-1-one

98%

Synonym(s):

2-Methyl-2-cyclopentene-1-one, 2-Methyl-2-cyclopentenone

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About This Item

Linear Formula:
CH3C5H5(=O)
CAS Number:
1120-73-6
Molecular Weight:
96.13
MDL number:
MFCD00012275
UNSPSC Code:
12352100
PubChem Substance ID:
24858352
NACRES:
NA.22

Quality Level

100

Assay

98%

form

liquid

refractive index

n20/D 1.479 (lit.)

bp

158-161 °C (lit.)

density

0.979 g/mL at 25 °C (lit.)

functional group

ketone

storage temp.

2-8°C

SMILES string

CC1=CCCC1=O

InChI

1S/C6H8O/c1-5-3-2-4-6(5)7/h3H,2,4H2,1H3

InChI key

ZSBWUNDRDHVNJL-UHFFFAOYSA-N

General description

Diels-Alder reactions of 2-methyl-2-cyclopenten-1-one with 1-ethenylhydronaphthalenes were studied.

Pictograms

Flame
GHS02

Signal Word

Warning

Hazard Statements

H226

Hazard Classifications

Flam. Liq. 3

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

120.2 °F - closed cup

Flash Point(C)

49 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Regulatory Listings

Regulatory Listings are mainly provided for chemical products. Only limited information can be provided here for non-chemical products. No entry means none of the components are listed. It is the user’s obligation to ensure the safe and legal use of the product.

FSL

Group 4: Flammable liquids
Type 2 petroleums
Hazardous rank III
Water insoluble liquid

JAN Code

304190-25G:
304190-VAR:
304190-1G:
304190-BULK:
304190-5G:

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Certificates of Analysis (COA)

Lot/Batch Number
MKBZ0098V
MKBZ0097V
11001LZ
05512JU
13523DR

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Regiochemistry of the Diels-Alder Reaction of 1-Ethenyl-hydronaphthalenes and 2-Methyl-2-cyclopenten-1-one.
Minuti L, et al.
Synthetic Communications, 22(11), 1535-1540 (1992)

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