124617-19-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 124617-19-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,2,4,6,1 and 7 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 124617-19:
(8*1)+(7*2)+(6*4)+(5*6)+(4*1)+(3*7)+(2*1)+(1*9)=112
112 % 10 = 2
So 124617-19-2 is a valid CAS Registry Number.
124617-19-2Relevant articles and documents
Efficient Synthesis of N,N'-Dimethyl Diazacoronands
Ostaszewski, Ryszard,Jacobsson, Ulla,Jurczak, Janusz
, p. 221 - 228 (2007/10/02)
Modification of the Richman and Atkins method for preparation of symmetric and nonsymmetric bis-(p-toluenesulphonyl) diazacoronands is reported.The one-pot transformation of these compounds into N,N'-dimethyl diazacoronands is also described.