Skip to Content
MilliporeSigma
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

Select a Size

1 G
$58.71
5 G
$169.10

$58.71

List Price$61.80
Web-Only Promotion

Available to ship onMay 13, 2025Details

Request a Bulk Order
All Photos(1)

Select a Size

Change View
1 G
$58.71
5 G
$169.10

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

$58.71

List Price$61.80
Web-Only Promotion

Available to ship onMay 13, 2025Details

Request a Bulk Order

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

Related Categories

General description

Cyclopentanecarboxaldehyde can be prepared from cyclohexene, via copper-catalyzed oxidation with persulfate.[1] It can also be synthesized from mercuric sulfate and cyclohexene.[2]

Application

Cyclopentanecarboxaldehyde may be used in the synthesis of:
  • D,L-trans-2-cyclopentylmethylene-1-nitroso-1-(2-hydroxycyclohexyl)hydrazine[3]
  • ethyl 5-cyclopentyl-5-hydroxy-2-pentenoate[4]
  • ethyl 3-cyclo entyl-3-hydroxy-2-vinylpropanoate[4]

pictograms

FlameExclamation mark
GHS02,GHS07

signalword

Warning

Hazard Classifications

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

target_organs

Respiratory system

Storage Class

3 - Flammable liquids

wgk_germany

WGK 3

flash_point_f

82.9 °F - closed cup

flash_point_c

28.3 °C - closed cup

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Choose from one of the most recent versions:

Certificates of Analysis (COA)

Lot/Batch Number
MKCT1972
SHBM3697
SHBK5603
SHBC8421V
13196BMV

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

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)
Cyclopentanecarboxaldehyde.
Grummitt O, et al.
Organic Syntheses, 26-26 null
2-Hydroxycyclohexylhydrazines. II. 1 Reaction with Nitrous Acid.
Taguchi T, et al.
The Journal of Organic Chemistry, 29(5), 1104-1106 (1964)
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)

Questions

1–2 of 2 Questions  

  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. If this product has an expiration or retest date, it will be shown on the Certificate of Analysis (COA, CofA). If there is no retest or expiration date listed on the product's COA, we do not have suitable stability data to determine a shelf life. For these products, the only date on the COA will be the release date; a retest, expiration, or use-by-date will not be displayed.
      For all products, we recommend handling per defined conditions as printed in our product literature and website product descriptions. We recommend that products should be routinely inspected by customers to ensure they perform as expected.
      For products without retest or expiration dates, our standard warranty of 1 year from the date of shipment is applicable.
      For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf

      Helpful?

  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. Products may be shipped at a different temperature than the recommended long-term storage temperature. If the product quality is sensitive to short-term exposure to conditions other than the recommended long-term storage, it will be shipped on wet or dry-ice. If the product quality is NOT affected by short-term exposure to conditions other than the recommended long-term storage, it will be shipped at ambient temperature. As shipping routes are configured for minimum transit times, shipping at ambient temperature helps control shipping costs for our customers. For more information, please refer to the Storage and Transport Conditions document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/316/622/storage-transport-conditions-mk.pdf

      Helpful?

Reviews

No rating value

Active Filters

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