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1238892-23-3

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1238892-23-3 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 1238892-23-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,3,8,8,9 and 2 respectively; the second part has 2 digits, 2 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1238892-23:
(9*1)+(8*2)+(7*3)+(6*8)+(5*8)+(4*9)+(3*2)+(2*2)+(1*3)=183
183 % 10 = 3
So 1238892-23-3 is a valid CAS Registry Number.

1238892-23-3Relevant articles and documents

Copper-Iodide- and Diorganyl-Diselenide-Promoted Cyclization of 2-Alkynylphenols: Alternative Approach to 3-Organoselanylbenzo[b]furans

Kazmierczak, Jean C.,Recchi, Ana M. S.,Gritzenco, Fabiane,Balbom, Everton B.,Barcellos, Thiago,Speran?a, Adriane,Godoi, Benhur

, p. 6382 - 6389 (2017/12/01)

This paper describes an alternative method for the synthesis of 3-organoselanylbenzo[b]furans through the intramolecular cyclization of 2-alkynylphenols promoted by copper iodide and diorganyl diselenides. The cyclization reactions were carried out at roo

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