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852211-43-9

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852211-43-9 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 852211-43-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,5,2,2,1 and 1 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 852211-43:
(8*8)+(7*5)+(6*2)+(5*2)+(4*1)+(3*1)+(2*4)+(1*3)=139
139 % 10 = 9
So 852211-43-9 is a valid CAS Registry Number.

852211-43-9Relevant articles and documents

5-Endo-dig electrophilic cyclization of 1,4-disubstituted but-3-yn-1-ones: Regiocontrolled synthesis of 2,5-disubstituted 3-bromo- and 3-iodofurans

Sniady, Adam,Wheeler, Kraig A.,Dembinski, Roman

, p. 1769 - 1772 (2005)

(Chemical Equation Presented) 5-Endo-dig electrophilic cyclization of 1,4-diaryl but-3-yn-1-ones with N-bromosuccinimide or N-iodosuccinimide/acetone and iodine monochloride/ CH2Cl2, at room temperature, in the absence of base, provi

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