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1257231-51-8

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1257231-51-8 Usage

Uses

Methyl 4-bromo-3-iodobenzoate

Check Digit Verification of cas no

The CAS Registry Mumber 1257231-51-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,5,7,2,3 and 1 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1257231-51:
(9*1)+(8*2)+(7*5)+(6*7)+(5*2)+(4*3)+(3*1)+(2*5)+(1*1)=138
138 % 10 = 8
So 1257231-51-8 is a valid CAS Registry Number.

1257231-51-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 18, 2017

Revision Date: Aug 18, 2017

1.Identification

1.1 GHS Product identifier

Product name Methyl 4-bromo-3-iodobenzoate

1.2 Other means of identification

Product number -
Other names 2-Thiophenecarboxylic acid,4-bromo-3-hydroxy-5-methyl-,methyl ester

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:1257231-51-8 SDS

1257231-51-8Relevant articles and documents

Investigations of the Alignment Process of PBPMLG: 2H NMR Analysis Reveals a Thermoresponsive 90° Flip of the Polymer

Hirschmann, Max,Lehmann, Matthias,Radulov, Iliya A.,Schirra, Dominic S.,Thiele, Christina M.

, p. 21040 - 21046 (2021)

The application of anisotropic parameters in NMR-spectroscopy enables the acquisition of spatial and angular information, complementary to those from conventional isotropic NMR-measurements. The use of alignment media is a well-established method for inducing anisotropy. PBPMLG is a recently discovered polyglutamate-based alignment medium, exhibiting thermoresponsive behavior in the lyotropic liquid crystalline (LLC) phase, thus offering potential for deeper understanding of the alignment process. We present one approach for investigating the thermoresponsive behavior by synthesizing specifically deuterated PBPMLG-isotopologues and their subsequent analyses using 2H NMR-spectroscopy. It was possible to relate the observed thermoresponsive behavior to a flip of the polymer with respect to the external magnetic field—an effect never observed before in glutamate-based polymeric alignment media. Furthermore, a solvent-induced temperature dependent gelation was verified in THF, which might provide yet another opportunity to manipulate the properties of this alignment medium in the future.

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