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253443-43-5

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253443-43-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 253443-43-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,3,4,4 and 3 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 253443-43:
(8*2)+(7*5)+(6*3)+(5*4)+(4*4)+(3*3)+(2*4)+(1*3)=125
125 % 10 = 5
So 253443-43-5 is a valid CAS Registry Number.

253443-43-5Downstream Products

253443-43-5Relevant articles and documents

General 5-Halomethyl Isoxazoline Synthesis Enabled by Copper-Catalyzed Oxyhalogenation of Alkenes

Li, Xiaoqing,Ding, Yu,Qian, Lijie,Gao, Yang,Wang, Xinqiang,Yan, Xinhuan,Xu, Xiangsheng

, p. 12656 - 12663 (2019/10/14)

A general and efficient oxyhalogenation of unsaturated ketoximes has been achieved through copper catalysis with diethyl bromomalonate, N-chlorosuccinimide, and N-iodosuccinimide, yielding 5-chloromethyl, 5-bromomethyl, and 5-iodomethyl isoxazolines in go

Oxime-mediated oxychlorination and oxybromination of unactivated olefins

Dong, Kui-Yong,Qin, Hai-Tao,Liu, Feng,Zhu, Chen

, p. 1419 - 1422 (2015/03/04)

An oxime-mediated oxychlorination and oxybromination of unactivated olefins relying on palladium catalysis has been developed. A wide range of chlorinated and brominated isoxazolines has been synthesized in moderate to good yields. To demonstrate the value of the method, the brominated isoxazoline has been further converted to other useful synthetic feedstock.

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