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/418/501/product-dating-information-06-25-mk.pdf
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C112402
Cyclopentanon
≥99%, liquid, suitable for synthesis, ReagentPlus®
Synonym(e):
Adipic ketone
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Über diesen Artikel
Produktname
Cyclopentanon, ReagentPlus®, ≥99%
Quality Segment
product line
ReagentPlus®
assay
≥99%
form
liquid
dilution
(for general lab use)
refractive index
n20/D 1.437 (lit.)
bp
130-131 °C (lit.)
mp
−51 °C (lit.)
density
0.951 g/mL at 25 °C (lit.)
functional group
ketone
SMILES string
O=C1CCCC1
InChI
1S/C5H8O/c6-5-3-1-2-4-5/h1-4H2
InChI key
BGTOWKSIORTVQH-UHFFFAOYSA-N
General description
Application
It may be used in the following studies:
- Preparation of (2E,5E)-2,5-bis(4-(azidomethyl)benzylidene) cyclopentanone, via cross-aldol condensation.
- Preparation of symmetrical C-5 curcuminoids by reacting with substituted benzaldehyde via Claisen-Schmidt condensation.
- As an electron pair donor to stabilize allyl and vinyl cations during intramolecular carbohydroxylation of alkynes.
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Dieser Artikel | |||
|---|---|---|---|
| description ReagentPlus®, ≥99% | description analytical standard | description ≥99%, FG | description 99% |
| Quality Level 200 | Quality Level 100 | Quality Level 400, 300 | Quality Level 100 |
| assay ≥99% | assay ≥99.5% (GC) | assay ≥99% | assay 99% |
| form liquid | form - | form - | form liquid |
| density 0.951 g/mL at 25 °C (lit.) | density 0.951 g/mL at 25 °C (lit.) | density 0.951 g/mL at 25 °C (lit.) | density 0.949 g/mL at 25 °C (lit.), 0.948 g/mL at 20 °C |
| refractive index n20/D 1.437 (lit.) | refractive index n20/D 1.437 | refractive index n20/D 1.437 (lit.) | refractive index n20/D 1.453 (lit.) |
| bp 130-131 °C (lit.) | bp 130-131 °C (lit.) | bp 130-131 °C (lit.) | bp 139-140 °C (lit.) |
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signalword
Warning
hcodes
Hazard Classifications
Eye Irrit. 2 - Flam. Liq. 3 - Skin Irrit. 2
Lagerklasse
3 - Flammable liquids
wgk
WGK 1
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
flash_point_f
81.5 °F
flash_point_c
27.5 °C
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How is shipping temperature determined? And how is it related to the product storage temperature?
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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
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