403642-54-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 403642-54-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,3,6,4 and 2 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 403642-54:
(8*4)+(7*0)+(6*3)+(5*6)+(4*4)+(3*2)+(2*5)+(1*4)=116
116 % 10 = 6
So 403642-54-6 is a valid CAS Registry Number.
403642-54-6Relevant articles and documents
Synthesis of β-carbolines from 2-Acyl-1-benzenesulfonyl-3-iodo-1H-indoles
Abbiati,Beccalli,Marchesini,Rossi
, p. 2477 - 2483 (2007/10/03)
2-Acyl-1-benzenesulfonyl-3-iodo-1H-indoles and 1-benzenesulfonyl-3-iodo-1H-indole-2-carbaldehyde give in satisfactory yields 1,3- and 3-substituted-β-carbolines, respectively, by combined palladium-catalyzed coupling with alk-1-ynes followed by 6-endo-dig
