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401647-83-4

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401647-83-4 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 401647-83-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,1,6,4 and 7 respectively; the second part has 2 digits, 8 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 401647-83:
(8*4)+(7*0)+(6*1)+(5*6)+(4*4)+(3*7)+(2*8)+(1*3)=124
124 % 10 = 4
So 401647-83-4 is a valid CAS Registry Number.

401647-83-4Relevant articles and documents

Synthesis of benzimidazole-fused heterocycles by intramolecular oxidative C-N bond formation using hypervalent iodine reagents

Kutsumura, Noriki,Kunimatsu, Shinichi,Kagawa, Kimiko,Otani, Takashi,Saito, Takao

experimental part, p. 3235 - 3240 (2011/11/30)

A straightforward approach by dehydrogenative C-N coupling between aryl C-H and N-H bonds using a hypervalent iodine reagent under mild conditions offers a versatile and convenient method for synthesizing various benzimidazole-fused heterocycles. Georg Th

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