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21131-58-8

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21131-58-8 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 21131-58-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,1,1,3 and 1 respectively; the second part has 2 digits, 5 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 21131-58:
(7*2)+(6*1)+(5*1)+(4*3)+(3*1)+(2*5)+(1*8)=58
58 % 10 = 8
So 21131-58-8 is a valid CAS Registry Number.

21131-58-8Relevant articles and documents

Palladium-Catalyzed Three-Component Coupling Reaction of o-Bromobenzaldehyde, N-Tosylhydrazone, and Methanol

Zhu, Lei,Ren, Xiaojian,Yu, Yinghua,Ou, Pengcheng,Wang, Zhi-Xiang,Huang, Xueliang

supporting information, p. 2087 - 2092 (2020/03/04)

A ligand-controlled palladium-catalyzed three-component reaction of o-bromobenzaldehyde, N-tosylhydrazone, and methanol is described. This reaction uses readily available compounds as starting materials while displaying a broad substrate scope and good functional group compatibility.

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