跳转至内容
Merck
所有图片(1)

主要文件

查看所有文档

I19551

Sigma-Aldrich

异戊二烯

Isoprene
1 of 1 reviewers received a sample product or took part in a promotion

99%, contains <1000 ppm p-tert-butylcatechol as inhibitor

别名:

2-甲基-1,3-丁二烯

登录查看公司和协议定价
所有图片(1)

About This Item

线性分子式:
CH2=CHC(CH3)=CH2
CAS号:
78-79-5
分子量:
68.12
Beilstein:
969158
MDL编号:
MFCD00008600
UNSPSC代码:
12352100
PubChem化学物质编号:
24895956
NACRES:
NA.22
价格与库存信息目前不能提供

蒸汽密度

2.35 (vs air)

质量水平

200

蒸汽压

8.82 psi ( 20 °C)

方案

99%

表单

liquid

自燃温度

428 °F

包含

<1000 ppm p-tert-butylcatechol as inhibitor

expl. lim.

10 %

折射率

n20/D 1.422 (lit.)

沸点

34 °C (lit.)

mp

−146 °C (lit.)

密度

0.681 g/mL at 25 °C (lit.)

储存温度

2-8°C

SMILES字符串

CC(=C)C=C

InChI

1S/C5H8/c1-4-5(2)3/h4H,1-2H2,3H3

InChI key

RRHGJUQNOFWUDK-UHFFFAOYSA-N

正在寻找类似产品? 访问 产品对比指南

相关类别

应用

异戊二烯在作为引发剂的仲丁基锂的存在下，可以与苯乙烯和甲基丙烯酸甲酯进行顺序的阴离子聚合，从而形成聚苯乙烯-嵌段-聚异戊二烯-嵌段-聚（甲基丙烯酸甲酯）（SIM）和聚异戊二烯-嵌段-聚苯乙烯-嵌段-聚（甲基） 甲基丙烯酸酯（ISM），两种不对称三嵌段三元共聚物。[1]它也可用于聚苯乙烯-嵌段-聚异戊二烯（PS-b-PI）二嵌段共聚物的不对称合成。[2]

包装

查看可回收的容器产品。

象形图

FlameHealth hazard
GHS02,GHS08

警示用语：

Danger

危险分类

Aquatic Chronic 3 - Carc. 1B - Flam. Liq. 1 - Muta. 2

储存分类代码

3 - Flammable liquids

WGK

WGK 3

闪点(°F)

-65.2 °F - closed cup

闪点(°C)

-54 °C - closed cup

个人防护装备

Eyeshields, Faceshields, Gloves

历史批次信息供参考:

分析证书(COA)

Lot/Batch Number
SHBS5326
SHBR8915
SHBR1110
SHBQ7580
SHBQ9783

没有发现合适的版本？

如果您需要特殊版本，可通过批号或批次号查找具体证书。

搜索COA

已有该产品？

在文件库中查找您最近购买产品的文档。

访问文档库

Four-Phase Morphologies in Blends of ABC and BAC Triblock Terpolymers
Haenelt TG, et al.
Macromolecular Chemistry and Physics, 219(1), 1700241-1700241 (2018)
Morphology and elasticity of polystyrene-block-polyisoprene diblock copolymers in the melt.
Haenelt TG, et al.
Korea-Australia Rheology Journal, 26(3), 263-275 (2014)
Russell K Monson et al.
Plant, cell & environment, 36(3), 503-516 (2012-09-25)
Isoprene (2-methyl-1,3-butadiene) is emitted from many plants and it appears to have an adaptive role in protecting leaves from abiotic stress. However, only some species emit isoprene. Isoprene emission has appeared and been lost many times independently during the evolution
Michaela Stieglmeier et al.
International journal of systematic and evolutionary microbiology, 64(Pt 8), 2738-2752 (2014-06-08)
A mesophilic, neutrophilic and aerobic, ammonia-oxidizing archaeon, strain EN76(T), was isolated from garden soil in Vienna (Austria). Cells were irregular cocci with a diameter of 0.6-0.9 µm and possessed archaella and archaeal pili as cell appendages. Electron microscopy also indicated
H Koc et al.
Journal of breath research, 5(3), 037102-037102 (2011-06-10)
Isoprene is one of the most abundant endogenous volatile organic compounds (VOCs) contained in human breath and is considered to be a potentially useful biomarker for diagnostic and monitoring purposes. However, neither the exact biochemical origin of isoprene nor its
查看所有相关文献
1 Review This action will navigate to reviews.

Questions

1–2 of 2 Questions  

  1. 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?

  2. 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?

Reviews

1 of 1 reviewers received a sample product or took part in a promotion

Active Filters

    • Reviews 3
    • Votes 9
    5 out of 5 stars.

    Good product

    Good product if you need isoprene. Was useful for atmospheric chemistry research.

    Helpful?

我们的科学家团队拥有各种研究领域经验，包括生命科学、材料科学、化学合成、色谱、分析及许多其他领域.

联系技术服务部门