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
E18425
Ethylcyanoacetat
≥98%
Synonym(e):
(Ethoxycarbonyl)acetonitrile, 2-Cyanoacetic acid ethyl ester, 3-Ethoxy-3-oxopropanenitrile, Cyanoacetic acid ethyl ester, Cyanoacetic ester, Ethyl α-cyanoacetate, Ethyl 2-cyanoacetate, Ethyl cyanacetate, Malonic acid ethyl ester nitrile
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Dampfdichte
3.9 (vs air)
Qualitätsniveau
Dampfdruck
1 mmHg ( 67.8 °C)
Assay
≥98%
Form
liquid
Brechungsindex
n20/D 1.418 (lit.)
bp
208-210 °C (lit.)
mp (Schmelzpunkt)
−22 °C (lit.)
Dichte
1.063 g/mL at 25 °C (lit.)
SMILES String
CCOC(=O)CC#N
InChI
1S/C5H7NO2/c1-2-8-5(7)3-4-6/h2-3H2,1H3
InChIKey
ZIUSEGSNTOUIPT-UHFFFAOYSA-N
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Verwandte Kategorien
1 of 4
Dieser Artikel | 108421 | 543055 | 28440 |
|---|---|---|---|
| assay ≥98% | assay 99% | assay 96% | assay ≥97.0% (GC) |
| Quality Level 200 | Quality Level 200 | Quality Level 100 | Quality Level 100 |
| form liquid | form - | form - | form - |
| refractive index n20/D 1.418 (lit.) | refractive index n20/D 1.417 (lit.) | refractive index n20/D 1.445 (lit.) | refractive index n20/D 1.420 |
| mp −22 °C (lit.) | mp −13 °C (lit.) | mp - | mp - |
| bp 208-210 °C (lit.) | bp 204-207 °C (lit.) | bp 217 °C (lit.) | bp 40-42 °C/0.1 mmHg (lit.) |
Allgemeine Beschreibung
Ethyl cyanoacetate is widely used as a building block in organic synthesis to produce active pharmaceutical ingredients.[2][3]
Anwendung
Verpackung
Signalwort
Warning
H-Sätze
Gefahreneinstufungen
Eye Irrit. 2
Lagerklassenschlüssel
10 - Combustible liquids
WGK
WGK 1
Flammpunkt (°F)
230.0 °F
Flammpunkt (°C)
110 °C
Persönliche Schutzausrüstung
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Artikel
Knoevenagel Condensation is an organic reaction named after Emil Knoevenagel. It is a classic C-C bond formation reaction and a modification of the Aldol Condensation.
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How can I determine the shelf life / expiration / retest date of this product?
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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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