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
E50205
Ethyl 4,4,4-trifluoroacetoacetate
99%
Synonym(s):
ETFAA, Ethyl 3-oxo-4,4,4-trifluorobutyrate
Select a Size
| Pack Size | SKU | Availability | Price |
|---|---|---|---|
| 5 g | Available to ship TODAYfromMILWAUKEE | $36.70 | |
| 25 g | Available to ship TODAYfromMILWAUKEE | $60.20 | |
| 100 g | Check Cart for Availability | $126.00 |
About This Item
$36.70
Available to ship TODAYDetails
Quality Segment
assay
99%
form
liquid
refractive index
n20/D 1.375 (lit.)
bp
129-130 °C (lit.)
density
1.259 g/mL at 25 °C (lit.)
SMILES string
CCOC(=O)CC(=O)C(F)(F)F
InChI
1S/C6H7F3O3/c1-2-12-5(11)3-4(10)6(7,8)9/h2-3H2,1H3
InChI key
OCJKUQIPRNZDTK-UHFFFAOYSA-N
Application
- Synthesis of (S)- and (R)-α-trifluoromethyl-aspartic acid and α- trifluoromethyl-serine from chiral CF3-oxazolidines, which is derived from ETFAA.
- Enantiopure synthesis of trifluoromethyl-β-amino acid derivatives.
- Synthesis of (2R)-2-trifluoromethyl-2-carboxyazetidine, (R)- and (S)-trifluoromethylhomoserines from oxazolidine intermediate obtained by condensing (R)-phenylglycinol with ETFAA.
1 of 1
This Item | |||
|---|---|---|---|
| assay 99% | assay 98% | assay ≥99% | assay ≥98% (GC) |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
| refractive index n20/D 1.375 (lit.) | refractive index n20/D 1.343 | refractive index n20/D 1.3 (lit.) | refractive index n20/D 1.52 (lit.) |
| density 1.259 g/mL at 25 °C (lit.) | density 1.212 g/mL at 25 °C | density 1.511 g/mL at 20 °C (lit.) | density 1.11 g/mL at 25 °C (lit.) |
| bp 129-130 °C (lit.) | bp 123-127 °C/760 mmHg | bp 39.5-40 °C (lit.) | bp 265-270 °C (lit.) |
| form liquid | form liquid | form - | form liquid |
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signalword
Warning
hcodes
Hazard Classifications
Acute Tox. 4 Oral - Aquatic Chronic 3 - Flam. Liq. 3
Storage Class
3 - Flammable liquids
wgk
WGK 2
flash_point_f
100.4 °F - closed cup
flash_point_c
38 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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Global Trade Item Number
| SKU | GTIN |
|---|---|
| E50205-25G | 04061837380587 |
| E50205-5G | 04061837380594 |
| E50205-100G | 04061838354211 |
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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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