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220159

Sigma-Aldrich

2,3-二甲基-2-丁烯

≥99%

别名:

四甲基乙烯

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25 ML
$271.00
100 ML
$900.00

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25 ML
$271.00
100 ML
$900.00

About This Item

线性分子式:
(CH3)2C=C(CH3)2
CAS号:
563-79-1
分子量:
84.16
Beilstein:
1361357
EC 号:
209-263-8
MDL编号:
MFCD00008897
UNSPSC代码:
12352100
PubChem化学物质编号:
24853167
NACRES:
NA.22

$271.00

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蒸汽压

215 mmHg ( 37.7 °C)

方案

≥99%

表单

liquid

自燃温度

754 °F

折射率

n20/D 1.412 (lit.)

沸点

73 °C (lit.)

mp

−75 °C (lit.)

密度

0.708 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES字符串

C\C(C)=C(\C)C

InChI

1S/C6H12/c1-5(2)6(3)4/h1-4H3

InChI key

WGLLSSPDPJPLOR-UHFFFAOYSA-N

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相关类别

一般描述

2,3-二甲基-2-丁烯在黑暗中臭氧分解产生羟基自由基 [1]。用流动管接口式紫外光电子能谱仪研究了臭氧与 2，3-二甲基-2-丁烯 (DMB) 的反应 [2]。在 0°C 和-15°C 下，DMB 与四氟硼酸硫代阳离子自由基形成加合物 [3]。

应用

2,3-二甲基-2-丁烯作为底物参与了 2-羟基-1,4-萘醌的光诱导分子转化 [4]。

象形图

FlameHealth hazard
GHS02,GHS08

警示用语：

Danger

危险声明

H225,H304

预防措施声明

P210 - P301 + P310 + P331

危险分类

Asp. Tox. 1 - Flam. Liq. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

17.6 °F - closed cup

闪点(°C)

-8 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBR8100
SHBN6703
SHBL0062
SHBH5043V
SHBH1200V

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The Journal of Organic Chemistry, 58, 4614-4614 (1993)
Bing-Jun Zhao et al.
The Journal of organic chemistry, 71(10), 3737-3742 (2006-05-06)
Thianthrene cation radical tetrafluoroborate (Th*+ BF4-) has been found to add to 2,3-dimethyl-2-butene (DMB) at 0 degrees C and -15 degrees C. The adduct, 2,3-dimethyl-2,3-(5,10-thianthreniumdiyl)butane ditetrafluoroborate (12), was isolated at -15 degrees C, and its 1H NMR spectrum was recorded
Maryline Pflieger et al.
Environmental science & technology, 47(12), 6239-6246 (2013-05-15)
In order to investigate the heterogeneous oxidation kinetics of the herbicide terbuthylazine (TERB), a stable and reproducible generation system of "dark" hydroxyl radical in the gas phase was developed and optimized using a PTR-MS. TERB was adsorbed on silica particles
Bert F Sels et al.
Journal of the American Chemical Society, 129(21), 6916-6926 (2007-05-10)
A heterogeneous catalyst containing MoO42- exchanged on layered double hydroxides (Mo-LDHs) is used to produce 1O2 from H2O2, and with this dark 1O2, unsaturated hydrocarbons are oxidized in allylic peroxides. The oxidation kinetics are studied in detail and are compared
P Di Mascio et al.
Free radical biology & medicine, 12(6), 471-478 (1992-01-01)
Ultraweak chemiluminescence arising from lipoperoxidation has been attributed by several authors to the radiative deactivation of singlet oxygen and triplet carbonyl products. The latter emitters have been suggested to come from annihilation of RO. and ROO. radicals as well as
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  1. How can I determine the shelf life / expiration / retest date of this product?

    1 answer

    1. 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/449/386/product-dating-information-mk.pdf

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  2. How is shipping temperature determined? And how is it related to the product storage temperature?

    1 answer

    1. 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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