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862891-92-7

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862891-92-7 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 862891-92-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,2,8,9 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 862891-92:
(8*8)+(7*6)+(6*2)+(5*8)+(4*9)+(3*1)+(2*9)+(1*2)=217
217 % 10 = 7
So 862891-92-7 is a valid CAS Registry Number.

862891-92-7Downstream Products

862891-92-7Relevant articles and documents

Ring-selective functionalization of N,N′-diarylureas by regioselective N-alkylation and directed ortho metalation

Clayden, Jonathan,Turner, Hazel,Pickworth, Mark,Adler, Thomas

, p. 3147 - 3150 (2007/10/03)

(Chemical Equation Presented) Unsymmetrical N,N′-diarylureas may be alkylated regioselectively at the more sterically congested nitrogen atom. The resulting mono-N-alkylated ureas undergo directed metalation (ortholithiation) with sec-BuLi to yield, on el

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