1268375-25-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1268375-25-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,6,8,3,7 and 5 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1268375-25:
(9*1)+(8*2)+(7*6)+(6*8)+(5*3)+(4*7)+(3*5)+(2*2)+(1*5)=182
182 % 10 = 2
So 1268375-25-2 is a valid CAS Registry Number.
1268375-25-2Relevant articles and documents
Selective multiple magnesiations of the thieno[3,2-b]thiophene scaffold
Kunz, Thomas,Knochel, Paul
, p. 866 - 872 (2011/03/19)
A full functionalization of all four positions of the thieno[3,2-b] thiophene scaffold was achieved. Starting from 2,5-dichlorothieno[3,2-b] thiophene, magnesiation of the 3- and 6-position using tmpMgClLiCl furnishes, after trapping with various electrop
