Skip to Content
Merck
All Photos(1)

Key Documents

View All Documentation

526037

Sigma-Aldrich

Cyclopentanecarboxaldehyde

95%

Synonym(s):

Cyclopentanealdehyde, Cyclopentanecarbaldehyde, Cyclopentyl aldehyde, Cyclopentylformaldehyde, Formylcyclopentane

Sign Into View Organizational & Contract Pricing
All Photos(1)

About This Item

Linear Formula:
C5H9CHO
CAS Number:
872-53-7
Molecular Weight:
98.14
MDL number:
MFCD00060798
UNSPSC Code:
12352100
PubChem Substance ID:
24874526
NACRES:
NA.22

Quality Level

100

Assay

95%

contains

0.1% hydroquinone as stabilizer

refractive index

n20/D 1.4430 (lit.)

bp

140-141 °C (lit.)

density

0.919 g/mL at 25 °C (lit.)

functional group

aldehyde

storage temp.

2-8°C

SMILES string

[H]C(=O)C1CCCC1

InChI

1S/C6H10O/c7-5-6-3-1-2-4-6/h5-6H,1-4H2

InChI key

VELDYOPRLMJFIK-UHFFFAOYSA-N

General description

Cyclopentanecarboxaldehyde can be prepared from cyclohexene, via copper-catalyzed oxidation with persulfate. It can also be synthesized from mercuric sulfate and cyclohexene.

Application

Cyclopentanecarboxaldehyde may be used in the synthesis of:
  • D,L-trans-2-cyclopentylmethylene-1-nitroso-1-(2-hydroxycyclohexyl)hydrazine
  • ethyl 5-cyclopentyl-5-hydroxy-2-pentenoate
  • ethyl 3-cyclo entyl-3-hydroxy-2-vinylpropanoate

Pictograms

FlameExclamation mark
GHS02,GHS07

Signal Word

Warning

Hazard Statements

H226,H315,H319,H335,H412

Hazard Classifications

Aquatic Chronic 3 - Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2 - STOT SE 3

Target Organs

Respiratory system

Storage Class Code

3 - Flammable liquids

WGK

WGK 3

Flash Point(F)

82.9 °F - closed cup

Flash Point(C)

28.3 °C - closed cup

Personal Protective Equipment

dust mask type N95 (US), Eyeshields, Gloves

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
SHBM3697
SHBK5603
SHBC8421V
13196BMV
13196BM

Don't see the Right Version?

If you require a particular version, you can look up a specific certificate by the Lot or Batch number.

Search for a COA

Already Own This Product?

Find documentation for the products that you have recently purchased in the Document Library.

Visit the Document Library

Cyclopentanecarboxaldehyde.
Grummitt O, et al.
Organic Syntheses, 26-26 null
The Synthesis of Some δ-Lactones of α,β,δ-Trihydroxy Acids1.
English Jr J, et al.
Journal of the American Chemical Society, 73(2), 615-618 (1951)
2-Hydroxycyclohexylhydrazines. II. 1 Reaction with Nitrous Acid.
Taguchi T, et al.
The Journal of Organic Chemistry, 29(5), 1104-1106 (1964)
Mechanism of oxidation of the 2-hydroxycyclohexyl radical to cyclopentanecarbaldehyde by copper ions in aqueous solutions.
Masarwa M, et al.
Inorganic Chemistry, 30(8), 1849-1854 (1991)

Our team of scientists has experience in all areas of research including Life Science, Material Science, Chemical Synthesis, Chromatography, Analytical and many others.

Contact Technical Service