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219668-51-6

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219668-51-6 Usage

Check Digit Verification of cas no

The CAS Registry Mumber 219668-51-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,6 and 8 respectively; the second part has 2 digits, 5 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 219668-51:
(8*2)+(7*1)+(6*9)+(5*6)+(4*6)+(3*8)+(2*5)+(1*1)=166
166 % 10 = 6
So 219668-51-6 is a valid CAS Registry Number.

219668-51-6Relevant articles and documents

The stereoselective synthesis of 2-substituted 3- azabicyclo[3.2.0]heptanes by intramolecular [2+2]-photocycloaddition reactions

Bach, Thorsten,Krueger, Christa,Harms, Klaus

, p. 305 - 320 (2007/10/03)

The stereoselective synthesis of the 3-azabicyclo[3.2.0]heptanes 6, 12, 13, 17, 22, 23 and 24 by an intramolecular [2+2]-photocycloaddition is described. The product yield was good to excellent in almost all cases studied (65-87%) except for a single exam

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