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25433-30-1

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25433-30-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 25433-30-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,5,4,3 and 3 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 25433-30:
(7*2)+(6*5)+(5*4)+(4*3)+(3*3)+(2*3)+(1*0)=91
91 % 10 = 1
So 25433-30-1 is a valid CAS Registry Number.

25433-30-1Relevant articles and documents

A rhenium complex doped in a silica molecular sieve for molecular oxygen sensing: Construction and characterization

Yang, Xiaozhou,Li, Yanxiao

, p. 746 - 753 (2016)

This paper reported a diamine ligand and its Re(I) complex for potential application in oxygen sensing. The novelty of this diamine ligand localized at its increased conjugation chain which had a typical electron-withdrawing group of 1,3,4-oxadiazole. Ele

Facile synthesis of 1,3,4-oxadiazoles via iodine promoted oxidative annulation of methyl-azaheteroarenes and hydrazides

Shang, Zhi-Hao,Sun, Ji-Na,Guo, Jiang-Shan,Sun, Yuan-Yuan,Weng, Wei-Zhao,Zhang, Zhen-Xiao,Li, Zeng-Jing,Zhu, Yan-Ping

, (2020/01/08)

An oxidative sp3 C–H bond of methyl-azaheteroarenes protocol was reported for the synthesis of 1,3,4-oxadiazoles via [4 + 1] annulation with hydrazides. This protocol enables 1,3,4-oxadiazole and quinoline linked diheterocycles via selective oxidation of sp3 C–H bond of methyl-azaheteroarenes in the presence of I2-DMSO. The reaction has a broad substrate scope and good functional group tolerance for methyl-azaheteroarenes and hydrazides.

Preparation and acetylcholinesterase inhibitory activities of pyridine-based 1,3,4-oxadiazole derivatives

Chen, Yafang,Huang, Ling,Yang, Wude,Yu, Xiang,Zhou, Xingji

, p. 1163 - 1171 (2020/09/18)

Fourteen pyridine-based 1,3,4-oxadiazole derivatives were synthesized from pyridine-2-carboxaldehyde via iodine-mediated oxidative cyclisation with substituted hydrazide by using the impregnation method. Their structures were confirmed by melting point,

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