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For more information, please refer to the Product Dating Information document: https://www.sigmaaldrich.com/deepweb/assets/sigmaaldrich/marketing/global/documents/449/386/product-dating-information-mk.pdf
129763
2-Methyl-3-butyn-2-ol
98%
Synonym(s):
Dimethyl ethynyl carbinol
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$39.90
List Price$42.00Save 5%In StockDetails
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About This Item
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$39.90
List Price$42.00Save 5%In StockDetails
vapor pressure
15 mmHg ( 20 °C)
Quality Level
assay
98%
form
liquid
autoignition temp.
662 °F
expl. lim.
16.6 %
refractive index
n20/D 1.42 (lit.)
bp
104 °C (lit.)
mp
2.6 °C (lit.)
density
0.868 g/mL at 25 °C (lit.)
functional group
hydroxyl
SMILES string
CC(C)(O)C#C
InChI
1S/C5H8O/c1-4-5(2,3)6/h1,6H,2-3H3
InChI key
CEBKHWWANWSNTI-UHFFFAOYSA-N
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1 of 4
This Item | 110949 | B86400 | P8025 |
|---|---|---|---|
| assay 98% | assay 98% | assay 97% | assay 98% |
| Quality Level 200 | Quality Level 100 | Quality Level 100 | Quality Level 200 |
| bp 104 °C (lit.) | bp 112 °C (lit.) | bp 96-97 °C (lit.) | bp 114-115 °C/749 mmHg (lit.) |
| refractive index n20/D 1.42 (lit.) | refractive index n20/D 1.409 (lit.) | refractive index n20/D 1.415 (lit.) | refractive index n20/D 1.410 (lit.) |
| density 0.868 g/mL at 25 °C (lit.) | density 0.818 g/mL at 25 °C (lit.) | density 0.832 g/mL at 25 °C (lit.) | density 0.815 g/mL at 25 °C (lit.) |
| form liquid | form - | form liquid | form - |
General description
Application
- Aryl-2-methyl-3-butyn-2-ols via Pd-catalyzed Sonogashira coupling reaction with various aryl bromides.[3]
- 2-Methyl-3-buten-2-ol (MBE) by Pd/γ-Al2O3 catalyzed selective hydrogenation reaction. MBE is applicable as an important intermediate in the synthesis of vitamin A.[4]
- Diarylacetylenes via Pd-catalyzed Sonogashira coupling reaction with aryl chlorides in the presence of Cs2CO3 as a base.[5]
- Optically active propargylic alcohols by enantioselective addition reaction with various aldehydes in the presence of Zn(OTf)2 and N-methylephedrine.[6]
signalword
Danger
Hazard Classifications
Acute Tox. 4 Oral - Eye Dam. 1 - Flam. Liq. 2 - Repr. 2 - STOT SE 3
target_organs
Central nervous system
Storage Class
3 - Flammable liquids
wgk_germany
WGK 1
flash_point_f
66.2 °F - closed cup
flash_point_c
19 °C - closed cup
ppe
Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter
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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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