131219-78-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 131219-78-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,1,2,1 and 9 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 131219-78:
(8*1)+(7*3)+(6*1)+(5*2)+(4*1)+(3*9)+(2*7)+(1*8)=98
98 % 10 = 8
So 131219-78-8 is a valid CAS Registry Number.
131219-78-8Relevant articles and documents
Novel Tandem Conjugate Addition-Ramberg-B?cklund Rearrangements
Evans, Paul,Taylor, Richard J. K.
, p. 1043 - 1044 (2007/10/03)
A novel tandem process is reported for the preparation of allylic amines, ethers and sulfides from α-bromo-α,β-unsaturated sulfones; this process is believed to proceed via an initial conjugate addition followed by proton exchange and Ramberg-Ba?cklund rearrangement.