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4276-49-7

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4276-49-7 Usage

Chemical Properties

white to pale yellow powder

Uses

1-Bromoeicosane was used in the preparation of CuBr/polymer nanocomposite.

Biochem/physiol Actions

Self-assembled monolayers of 1-bromoeicosane were evaluated at the vacuum-graphite and liquid-graphite interfaces using scanning tunneling microscopy.

Check Digit Verification of cas no

The CAS Registry Mumber 4276-49-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,2,7 and 6 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 4276-49:
(6*4)+(5*2)+(4*7)+(3*6)+(2*4)+(1*9)=97
97 % 10 = 7
So 4276-49-7 is a valid CAS Registry Number.
InChI:InChI=1/C20H41Br/c1-2-3-4-5-6-7-8-9-10-11-12-13-14-15-16-17-18-19-20-21/h2-20H2,1H3

4276-49-7 Well-known Company Product Price

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  • Aldrich

  • (330485)  1-Bromoeicosane  ≥97%

  • 4276-49-7

  • 330485-25G

  • 1,316.25CNY

  • Detail

4276-49-7SDS

SAFETY DATA SHEETS

According to Globally Harmonized System of Classification and Labelling of Chemicals (GHS) - Sixth revised edition

Version: 1.0

Creation Date: Aug 11, 2017

Revision Date: Aug 11, 2017

1.Identification

1.1 GHS Product identifier

Product name 1-Bromoicosane

1.2 Other means of identification

Product number -
Other names 1-eicosyl bromide

1.3 Recommended use of the chemical and restrictions on use

Identified uses For industry use only.
Uses advised against no data available

1.4 Supplier's details

1.5 Emergency phone number

Emergency phone number -
Service hours Monday to Friday, 9am-5pm (Standard time zone: UTC/GMT +8 hours).

More Details:4276-49-7 SDS

4276-49-7Relevant articles and documents

Molecular Origin of the Odd-Even Effect of Macroscopic Properties of n-Alkanethiolate Self-Assembled Monolayers: Bulk or Interface?

Ben Amara, Fadwa,Dionne, Eric R.,Kassir, Sahar,Pellerin, Christian,Badia, Antonella

supporting information, p. 13051 - 13061 (2020/09/01)

Elucidating the influence of the monolayer interface versus bulk on the macroscopic properties (e.g., surface hydrophobicity, charge transport, and electron transfer) of organic self-assembled monolayers (SAMs) chemically anchored to metal surfaces is a challenge. This article reports the characterization of prototypical SAMs of n-alkanethiolates on gold (CH3(CH2)nSAu, n = 6-19) at the macroscopic scale by electrochemical impedance spectroscopy and contact angle goniometry, and at the molecular level, by infrared reflection absorption spectroscopy. The SAM capacitance, dielectric constant, and surface hydrophobicity exhibit dependencies on both the length (n) and parity (nodd or neven) of the polymethylene chain. The peak positions of the CH2 stretching modes indicate a progressive increase in the chain conformational order with increasing n between n = 6 and 16. SAMs of nodd have a greater degree of structural gauche defects than SAMs of neven. The peak intensities and positions of the CH3 stretching modes are chain length independent but show an odd-even alternation of the spatial orientation of the terminal CH3. The correlations between the different data trends establish that the chain length dependencies of the dielectric constant and surface hydrophobicity originate from changes in the polymethylene chain conformation (bulk), while the odd-even variation arises primarily from a difference in the chemical composition of the interface related to the terminal group orientation. These findings provide new physical insights into the structure-property relation of SAMs for the design of ultrathin film dielectrics as well as the understanding of stereostructural effects on the electrical characteristics of tunnel junctions.

SYNTHESIS OF HIERRIDIN, A PHENOL FROM THE LICHEN, RAMALINA HIERRENSIS

a Rodriguez

, p. 1436 - 1439 (2007/10/02)

A five-step reaction sequence was used to synthesize hierridin (2,4-dimethoxy-6-heneicosanylphenol), a new compound isolated from the lichen Ramalina hierrensis. Key Word Index: Ramalina hierrensis; lichen; hierridin; 2,4-dimethoxy-6-heneicosanylphenol.

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