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154715-81-8

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154715-81-8 Usage

General Description

2-(3,5-DIMETHYL-PHENYL)-BENZOOXAZOLE is a chemical compound also known as Tolidine Blue, which is commonly used as a fluorescent dye in the field of biology and histology. It has an important role in the visualization of cellular structures under a microscope. 2-(3,5-DIMETHYL-PHENYL)-BENZOOXAZOLE belongs to the class of benzoxazoles and consists of a benzene ring fused with an oxazole ring, as well as a 3,5-dimethylphenyl group. It is a blue dye that emits fluorescence when exposed to ultraviolet light, making it useful for staining microscopic specimens for imaging and analysis. Additionally, it can also be utilized in the field of medical diagnostics and in the textile industry for dyeing fabrics.

Check Digit Verification of cas no

The CAS Registry Mumber 154715-81-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,4,7,1 and 5 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 154715-81:
(8*1)+(7*5)+(6*4)+(5*7)+(4*1)+(3*5)+(2*8)+(1*1)=138
138 % 10 = 8
So 154715-81-8 is a valid CAS Registry Number.

154715-81-8SDS

SAFETY DATA SHEETS

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

Version: 1.0

Creation Date: Aug 13, 2017

Revision Date: Aug 13, 2017

1.Identification

1.1 GHS Product identifier

Product name 2-(3,5-dimethylphenyl)-1,3-benzoxazole

1.2 Other means of identification

Product number -
Other names 2-(3,5-dimethylphenyl)benzo[d]oxazole

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:154715-81-8 SDS

154715-81-8Downstream Products

154715-81-8Relevant articles and documents

(N-heterocyclic carbene)PdCl(N-heterocyclic carboxylate) complexes: Synthesis and catalytic activities towards arylation of benzoxazoles with aryl halides

Yang, Jin

, (2018)

A series of N-heterocyclic carboxylate-stabilized N-heterocyclic carbene palladium complexes have been synthesized and fully characterized. The solid-state structures indicate that each of the palladium centers is coordinated by an N-heterocyclic carbene, a chloride and a bidentate N,O-donor N-heterocyclic carboxylate ligand. The catalytic performance of the complexes was screened and the results revealed that the complexes exhibit moderate to high catalytic activities for the direct C─H bond arylation of benzoxazoles with aryl bromides.

Palladium-catalyzed direct C2-arylation of azoles with aromatic triazenes

Liu, Can,Wang, Zhiming,Wang, Lei,Li, Pinhua,Zhang, Yicheng

, p. 9209 - 9216 (2019/11/05)

A highly efficient palladium-catalyzed arylation of azoles at the C2-position using 1-aryltriazenes as aryl reagents was developed. Azoles including oxazoles, thiazoles, imidazoles, 1,3,4-oxadiazoles, and oxazolines could react with 1-aryltriazenes smoothly to generate the corresponding products in good to excellent yields, and various substitution patterns were tolerated toward the reaction.

Unsymmetrical Pincer N -Heterocyclic Carbene-Nitrogen-Phosphine Chelated Palladium(II) Complexes: Synthesis, Structure, and Reactivity in Direct Csp2-H Arylation of Benzoxazoles

Li, Yaqiu,Yu, Xiaojun,Wang, Yangdiandian,Fu, Haiyan,Zheng, Xueli,Chen, Hua,Li, Ruixiang

, p. 979 - 988 (2018/03/30)

An unsymmetrical pincer N-heterocyclic carbene-nitrogen-phosphine (CNP) and its palladium complexes PdCl2(κ2-CP) (4) and [PdCl(κ3-CNP)]PF6 (5·PF6) were synthesized. NMR spectra disclosed that the transformation of complex 4 structure occurred in the solution. Further NMR experimental and single crystal structure analysis of complex 4 provided unequivocal and structural evidence for the formation of complex [PdCl(κ3-CNP)]Cl (5·Cl) in the solution of complex 4. The catalytic performance of palladium complexes 4 and 5·PF6 was investigated with the direct Csp2-H arylation of benzoxazoles with aryl bromides. Notably, aryl bromides could give up to 97% arylation products in the presence of 0.5% complex 4. For ortho-substituted substrates, the steric hindrance had a significant impact, but product yields could be improved remarkably by extending reaction time. This result implied the catalytic active species in this system was stable and kept in a long lifetime. The flexible backbone and unsymmetrical pincer structure with a flank N-heterocyclic carbine should be a feasible strategy to realize an efficient catalytic transformation. This simple catalyst system first realized the direct arylation of aryl bromides with a catalyst loading as low as 0.25% without excessive base and copper as assistant catalyst.

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