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198889-35-9

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198889-35-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 198889-35-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,9,8,8,8 and 9 respectively; the second part has 2 digits, 3 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 198889-35:
(8*1)+(7*9)+(6*8)+(5*8)+(4*8)+(3*9)+(2*3)+(1*5)=229
229 % 10 = 9
So 198889-35-9 is a valid CAS Registry Number.

198889-35-9Relevant academic research and scientific papers

Potassium tert-butoxide mediated Heck-type cyclization/isomerization- benzofurans from organocatalytic radical cross-coupling reactions

Rueping, Magnus,Leiendecker, Matthias,Das, Arindam,Poisson, Thomas,Bui, Lan

, p. 10629 - 10631 (2011/10/30)

A transition metal-free Heck-type cyclization/isomerization reaction has been developed. Mediated by potassium tert-butoxide and phenanthroline a variety of benzofuran derivatives have been synthesized.

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