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
721123
2-Methyl-2-butanol
anhydrous, ≥99%
Synonym(s):
tert-Amyl alcohol, tert-Pentyl alcohol
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1 160,00 kr
1 840,00 kr
About This Item
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Product Name
2-Methyl-2-butanol, anhydrous, ≥99%
InChI
1S/C5H12O/c1-4-5(2,3)6/h6H,4H2,1-3H3
InChI key
MSXVEPNJUHWQHW-UHFFFAOYSA-N
SMILES string
CCC(C)(C)O
grade
anhydrous
vapor density
3 (vs air)
assay
≥99%
form
liquid
autoignition temp.
819 °F
expl. lim.
9 %
impurities
≤0.003% water (Karl Fischer, all unit sizes greater than 100 mL)
≤0.005% water (100 mL pkg)
evapn. residue
≤0.0005%
refractive index
n20/D 1.405 (lit.)
pH
6.0 (20 °C, 118 g/L)
bp
102 °C (lit.)
mp
−12 °C (lit.)
density
0.805 g/mL at 25 °C (lit.)
Quality Level
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Related Categories
1 of 4
This Item | 309435 | 240486 | N7206 |
|---|---|---|---|
| grade anhydrous | grade anhydrous | grade - | grade - |
| Quality Level 100 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| assay ≥99% | assay ≥99% | assay ≥99% | assay 99% |
| form liquid | form liquid | form liquid | form crystals |
| mp −12 °C (lit.) | mp −117 °C (lit.) | mp −12 °C (lit.) | mp 52-56 °C (lit.) |
| expl. lim. 9 % | expl. lim. 1.2-9 %, 100 °F | expl. lim. 9 % | expl. lim. - |
signalword
Danger
Hazard Classifications
Acute Tox. 4 Dermal - Acute Tox. 4 Inhalation - Eye Dam. 1 - Flam. Liq. 2 - Skin Irrit. 2 - STOT SE 3
target_organs
Central nervous system, Respiratory system
Storage Class
3 - Flammable liquids
wgk
WGK 1
flash_point_f
68.9 °F - closed cup
flash_point_c
20.5 °C - closed cup
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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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