259654-13-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 259654-13-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,5,9,6,5 and 4 respectively; the second part has 2 digits, 1 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 259654-13:
(8*2)+(7*5)+(6*9)+(5*6)+(4*5)+(3*4)+(2*1)+(1*3)=172
172 % 10 = 2
So 259654-13-2 is a valid CAS Registry Number.
259654-13-2Relevant articles and documents
A convenient method for the synthesis of thiopyrano[2,3-d:6,5- d']dipyrimidine derivatives
Quintela, Jose Ma.,Moreira, Maria J.,Peinador, Carlos
, p. 333 - 348 (2007/10/03)
A convenient and efficient one-pot synthesis of thiopyrano[2,3-d:6,5- d']dipyrimidine derivatives has been developed. The first solid-state structure elucidation of triheterocyclic system is also reported.