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
213969
(−)-Diethyl D-tartrate
≥99%
Synonym(s):
D-(−)-Tartaric acid diethyl ester
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InChI key
YSAVZVORKRDODB-WDSKDSINSA-N
InChI
1S/C8H14O6/c1-3-13-7(11)5(9)6(10)8(12)14-4-2/h5-6,9-10H,3-4H2,1-2H3/t5-,6-/m0/s1
SMILES string
CCOC(=O)[C@@H](O)[C@H](O)C(=O)OCC
assay
≥99%
optical activity
[α]23/D −8.5°, neat
optical purity
ee: ≥99% (GLC)
refractive index
n20/D 1.446 (lit.)
bp
162 °C/19 mmHg (lit.)
density
1.205 g/mL at 20 °C (lit.)
functional group
ester, hydroxyl
Quality Level
Related Categories
1 of 4
This Item | 227803 | 163457 | 420395 |
|---|---|---|---|
| assay ≥99% | assay 98% | assay 99% | assay 99% |
| Quality Level 100 | Quality Level 100 | Quality Level 200 | Quality Level 100 |
| bp 162 °C/19 mmHg (lit.) | bp - | bp 163 °C/23 mmHg (lit.) | bp 105-107 °C/1 mmHg (lit.) |
| density 1.205 g/mL at 20 °C (lit.) | density 1.119 g/mL at 20 °C (lit.) | density 1.238 g/mL at 25 °C (lit.) | density 0.972 g/mL at 25 °C (lit.) |
| refractive index n20/D 1.446 (lit.) | refractive index n20/D 1.439 (lit.) | refractive index - | refractive index n20/D 1.428 (lit.) |
| optical activity [α]23/D −8.5°, neat | optical activity [α]23/D −17°, neat | optical activity [α]22/D +21°, c = 2.5 in H2O | optical activity [α]20/D −57°, c = 1 in chloroform |
Storage Class
10 - Combustible liquids
wgk
WGK 3
flash_point_f
200.1 °F - closed cup
flash_point_c
93.4 °C - closed cup
ppe
Eyeshields, Gloves
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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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