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17847-09-5

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17847-09-5 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 17847-09-5 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,8,4 and 7 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 17847-09:
(7*1)+(6*7)+(5*8)+(4*4)+(3*7)+(2*0)+(1*9)=135
135 % 10 = 5
So 17847-09-5 is a valid CAS Registry Number.

17847-09-5Relevant 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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