138900-19-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138900-19-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,0 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138900-19:
(8*1)+(7*3)+(6*8)+(5*9)+(4*0)+(3*0)+(2*1)+(1*9)=133
133 % 10 = 3
So 138900-19-3 is a valid CAS Registry Number.
138900-19-3Relevant articles and documents
Efficient palladium-catalyzed N-arylation of indoles
Old, David W.,Harris, Michele C.,Buchwald, Stephen L.
, p. 1403 - 1406 (2007/10/03)
(Matrix presented) The N-arylation of indoles, including a variety of substituted ones, has been carried out using bulky, electron-rich phosphines as the supporting ligand in combination with Pd2(dba)3. Using this catalyst system, th