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42797-25-1

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42797-25-1 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 42797-25-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,7,9 and 7 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 42797-25:
(7*4)+(6*2)+(5*7)+(4*9)+(3*7)+(2*2)+(1*5)=141
141 % 10 = 1
So 42797-25-1 is a valid CAS Registry Number.

42797-25-1Relevant articles and documents

CONJUGATED SCHIFF'S BASES-14; CYCLOADDITION OF HETEROCUMULENES TO SOME 1-OXA-4-AZABUTADIENES

Moskal, Janusz,Moskal, Alexandra,Milart, Piotr

, p. 1787 - 1792 (2007/10/02)

1-Oxa-4-azabutadienes proved to be prone to react with some heterocumulenes after 1,3-cycloaddition patterns yielding various 5,5-disubstituted derivatives of 1,3-diaryl-hydanotoins as it was shown by the chemical and spectroscopic analysis.Relatively high yields, mild reaction conditions and a very weak effect of solvent polarity on the reaction rate suggested a synchroneous mechanism involving 1,2-migration of a substituent.

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