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M32631

Sigma-Aldrich

2-甲基丁烷

2-Methylbutane

ReagentPlus®, ≥99%

别名:

异戊烷

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About This Item

线性分子式:
CH3CH2CH(CH3)2
CAS号:
78-78-4
分子量:
72.15
Beilstein:
1730723
EC 号:
201-142-8
MDL编号:
MFCD00009338
UNSPSC代码:
12191502
PubChem化学物质编号:
329817967
NACRES:
NA.21
方案:
≥99%
沸点:
30 °C (lit.)
蒸汽压:
11.17 psi ( 20 °C)
价格与库存信息目前不能提供

蒸汽密度

2.6 (vs air)

质量水平

100

蒸汽压

11.17 psi ( 20 °C)

产品线

ReagentPlus®

方案

≥99%

表单

liquid

自燃温度

788 °F

expl. lim.

8.3 %

折射率

n20/D 1.354 (lit.)

沸点

30 °C (lit.)

mp

-160 °C

密度

0.62 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES字符串

CCC(C)C

InChI

1S/C5H12/c1-4-5(2)3/h5H,4H2,1-3H3

InChI key

QWTDNUCVQCZILF-UHFFFAOYSA-N

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相关类别

一般描述

2-甲基丁烷是一种易燃的高挥发性脂肪族烃，在有机合成中用作溶剂。它也用于与干冰或液氮一起快速冷冻生物样品。

应用

2-甲基丁烷可用作：      
  • 以铬-氧化铝为催化剂，用两段脱氢法合成异戊二烯的反应物。     
  • 用弱极性溶剂研究了芘取代的 1,3,4-恶二唑衍生物的分子内电荷转移（ICT）效应和溶剂致变色行为。

其他说明

编号 M32631-4X1L 的产品将停止供应。请订购属性与规格完全相同的单瓶 M32631-1L。

法律信息

ReagentPlus is a registered trademark of Merck KGaA, Darmstadt, Germany

警示用语：

Danger

危险分类

Aquatic Chronic 2 - Asp. Tox. 1 - Flam. Liq. 1 - STOT SE 3

靶器官

Central nervous system

补充剂危害

EUH066

储存分类代码

3 - Flammable liquids

WGK

WGK 2

闪点(°F)

-59.8 °F - closed cup

闪点(°C)

-51 °C - closed cup

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SDBB2220
SHBS4013
SHBR9711
SHBR9710
SHBS2402

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We have identified two intermediates in the autoxidation of NO*: ONOO*, which was detected by EPR spectroscopy at 295 K and atmospheric pressure in the gas phase, and ONOONO, a red substance produced at 113 K in 2-methylbutane. The red
Nahid A Khan et al.
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Questions

1–3 of 3 Questions  

  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

      Helpful?

  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

      Helpful?

  3. Does 2-Methylbutane (Isopentane) degrade when stored at room temperature?

    1 answer

    1. No testing has been conducted to determine how temperature affects reagent stability.

      Helpful?

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