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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220159
2,3-Dimethyl-2-butene
≥99%
Synonim(y):
Tetramethylethylene
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Informacje o tej pozycji
vapor pressure
215 mmHg ( 37.7 °C)
Quality Segment
assay
≥99%
form
liquid
autoignition temp.
754 °F
refractive index
n
bp
73 °C (lit.)
mp
−75 °C (lit.)
density
0.708 g/mL at 25 °C (lit.)
storage temp.
2-8°C
SMILES string
C\C(C)=C(\C)C
InChI
1S/C6H12/c1-5(2)6(3)4/h1-4H3
InChI key
WGLLSSPDPJPLOR-UHFFFAOYSA-N
General description
Application
1 of 1
Ta pozycja | |||
|---|---|---|---|
| assay ≥99% | assay 97% | assay 98% | assay ≥95.0% (GC) |
| density 0.708 g/mL at 25 °C (lit.) | density 0.68 g/mL at 25 °C (lit.) | density 0.708 g/mL at 25 °C (lit.) | density 0.662 g/mL at 25 °C (lit.) |
| mp −75 °C (lit.) | mp −158 °C (lit.) | mp −75 °C (lit.) | mp −134 °C (lit.) |
| refractive index n | refractive index n | refractive index n | refractive index n |
| bp 73 °C (lit.) | bp 56 °C (lit.) | bp 73 °C (lit.) | bp 35-38 °C (lit.) |
| form liquid | form liquid | form liquid | form liquid |
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signalword
Danger
hcodes
Hazard Classifications
Asp. Tox. 1 - Flam. Liq. 2
Klasa składowania
3 - Flammable liquids
wgk
WGK 3
flash_point_f
17.6 °F - closed cup
flash_point_c
-8 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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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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