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29556-18-1

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29556-18-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 29556-18-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,9,5,5 and 6 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 29556-18:
(7*2)+(6*9)+(5*5)+(4*5)+(3*6)+(2*1)+(1*8)=141
141 % 10 = 1
So 29556-18-1 is a valid CAS Registry Number.

29556-18-1Relevant articles and documents

Practical bromination of arylhydroxylamines with SOBr2 towards ortho-bromo-anilides

Du, Yuanbo,Feng, Lei,Gao, Hongyin,Guo, Lirong,Lu, Haifeng,Xi, Zhenguo

, (2021/05/19)

A facile approach for synthesizing ortho-bromoanilides from readily available aryhydroxylamines and thionyl bromide is demonstrated in this work. Mild reaction conditions and broad scope of substrates ranging from heterocyclic structures to pharmaceutics-potential motifs are used in the reactions of this paper. Efficient bromination of ortho C–H bonds of the aryhydroxylamines has been achieved. Ortho-bromoanilide products were obtained in good to excellent yields, and model scaled-up reactions of this synthetic approach are shown in this work.

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