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53920-49-3

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53920-49-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 53920-49-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,3,9,2 and 0 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 53920-49:
(7*5)+(6*3)+(5*9)+(4*2)+(3*0)+(2*4)+(1*9)=123
123 % 10 = 3
So 53920-49-3 is a valid CAS Registry Number.

53920-49-3Relevant articles and documents

Synthesis of 2-pyridylthiophosphinic acids and 2-pyridylthiophosphonate monoesters via nucleophilic aromatic substitution

Oka, Natsuhisa,Ori, Kensuke,Ando, Kaori

, p. 454 - 463 (2017)

In this study, we developed a method for the synthesis of 2-pyridylthiophosphinic acids and 2-pyridylthiophosphonate monoesters using easily accessible starting materials, H-phosphinate and H-phosphonate esters and pyridine N-oxides. The H-phosphinate and

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