Cas 136838-53-4,C22H25BN2O4S

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Check Digit Verification of cas no

The CAS Registry Mumber 136838-53-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,6,8,3 and 8 respectively; the second part has 2 digits, 5 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 136838-53:
(8*1)+(7*3)+(6*6)+(5*8)+(4*3)+(3*8)+(2*5)+(1*3)=154
154 % 10 = 4
So 136838-53-4 is a valid CAS Registry Number.

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136838-53-4Relevant articles and documents

Enantioselective synthesis of the core of banyaside, suomilide, and spumigin HKVV

Schindler, Corinna S.,Stephenson, Corey R. J.,Carreira, Erick M.

supporting information; experimental part, p. 8852 - 8855 (2009/05/30)

Concise: The first synthesis of the unique azabicyclononane core found in the aeruginosin class of serine protease inhibitors is described. The route is characterized by its efficiency (eight steps) and sets the stage for subsequent introduction of the gl

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136838-53-4