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328510

Sigma-Aldrich

4'-戊基-4-联苯甲腈

liquid crystal (nematic), 98%

别名:

4-戊基-4-氰基联苯, 4-氰基-4-戊基联苯, 5CB

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About This Item

线性分子式:
CH3(CH2)4C6H4C6H4CN
CAS号:
40817-08-1
分子量:
249.35
EC 号:
255-093-2
MDL编号:
MFCD00036350
UNSPSC代码:
12352103
PubChem化学物质编号:
24859381
NACRES:
NA.23
价格与库存信息目前不能提供

方案

98%

表单

liquid crystal (nematic)

折射率

n20/D 1.532 (lit.)

沸点

140-150 °C/0.5 mmHg (lit.)

密度

1.008 g/mL at 25 °C (lit.)

SMILES字符串

CCCCCc1ccc(cc1)-c2ccc(cc2)C#N

InChI

1S/C18H19N/c1-2-3-4-5-15-6-10-17(11-7-15)18-12-8-16(14-19)9-13-18/h6-13H,2-5H2,1H3

InChI key

HHPCNRKYVYWYAU-UHFFFAOYSA-N

相关类别

一般描述

4'-戊基-4-联苯甲腈（5CB）是向列型液晶。 5CB分别在18oC和35oC下经历从晶体到向列的相变，然后到各向同性状态。 它可以通过改性联苯来生产

应用

用氧化还原活性表面活性剂将 5CB 固定在水-液晶界面上进行了研究。[1]

象形图

Exclamation mark
GHS07

警示用语：

Warning

危险声明

H317

危险分类

Skin Sens. 1

储存分类代码

10 - Combustible liquids

WGK

WGK 3

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
MKCW0348
MKCT1852
WXBD8632V
MKCQ5621
MKCN4589

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Zongdai Liu et al.
Soft matter, 15(28), 5638-5643 (2019-06-28)
For nematic liquid crystals (LCs), a disclination line is formed when the director of the LCs changes abruptly. In this study, we demonstrate an approach to form dynamic disclination lines by flowing the nematic liquid crystal 4-cyano-4'-pentylbiphenyl (5CB) in rectangular
Active Control of the Anchoring of 4`-Pentyl-4-cyanobiphenyl (5CB) at an Aqueous?Liquid Crystal Interface By Using a Redox-Active Ferrocenyl Surfactant
Brake JM, et al.
Langmuir, 19 (21), 8629?8637-8629?8637 null
H A Fuster et al.
Science advances, 6(25), eabb1327-eabb1327 (2020-07-01)
Asymmetric interactions such as entropic (e.g., encoded by nonspherical shapes) or surface forces (e.g., encoded by patterned surface chemistry or DNA hybridization) provide access to functional states of colloidal matter, but versatile approaches for engineering asymmetric van der Waals interactions
Jin Pan et al.
Nanomaterials (Basel, Switzerland), 8(6) (2018-06-13)
Resistive pressure sensors generally employ microstructures such as pores and pyramids in the active layer or on the electrodes to reduce the Young’s modulus and improve the sensitivity. However, such pressure sensors always exhibit complex fabrication process and have difficulties
Makiko T Quint et al.
Scientific reports, 7(1), 17788-17788 (2017-12-21)
We present three-dimensional microshells formed by self-assembly of densely-packed 5 nm gold nanoparticles (AuNPs). Surface functionalization of the AuNPs with custom-designed mesogenic molecules drives the formation of a stable and rigid shell wall, and these unique structures allow encapsulation of cargo
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  1. How is shipping temperature determined? And how is it related to the product storage temperature?

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    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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  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

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