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
M32631
2-Methylbutane
ReagentPlus®, ≥99%
Sinónimos:
Isopentane
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Nombre del producto
2-Methylbutane, ReagentPlus®, ≥99%
InChI
1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3
SMILES string
CCC(C)C
InChI key
QWTDNUCVQCZILF-UHFFFAOYSA-N
vapor density
2.6 (vs air)
vapor pressure
11.17 psi ( 20 °C)
product line
ReagentPlus®
assay
≥99%
form
liquid
autoignition temp.
788 °F
expl. lim.
8.3 %
dilution
(for general lab use)
refractive index
n20/D 1.354 (lit.)
bp
30 °C (lit.)
mp
-160 °C
density
0.62 g/mL at 25 °C (lit.)
storage temp.
2-8°C
Quality Level
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Este artículo | 320404 | 277258 | 270342 |
|---|---|---|---|
| assay ≥99% | assay ≥99% | assay ≥99% | assay ≥99.5% |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 100 |
| form liquid | form liquid | form liquid | form liquid |
| autoignition temp. 788 °F | autoignition temp. 788 °F | autoignition temp. 788 °F | autoignition temp. 788 °F |
| vapor density 2.6 (vs air) | vapor density 2.6 (vs air) | vapor density 2.6 (vs air) | vapor density 2.6 (vs air) |
| mp -160 °C | mp -160 °C | mp -160 °C | mp -160 °C |
Application
- A reactant to synthesize isoprene by a two-stage dehydrogenation process using chromia-alumina catalyst.
- A weakly polar solvent to study the intramolecular charge transfer (ICT) effect and the solvatochromic behavior of the pyrene substituted 1,3,4-oxadiazole derivatives.
General description
Other Notes
Legal Information
signalword
Danger
hcodes
Hazard Classifications
Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3
target_organs
Central nervous system
supp_hazards
Clase de almacenamiento
3 - Flammable liquids
wgk
WGK 2
flash_point_f
-59.8 °F - closed cup
flash_point_c
-51 °C - closed cup
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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?
1 respuesta-
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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Does 2-Methylbutane (Isopentane) degrade when stored at room temperature?
1 respuesta-
No testing has been conducted to determine how temperature affects reagent stability.
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