261528-91-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261528-91-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,5,2 and 8 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 261528-91:
(8*2)+(7*6)+(6*1)+(5*5)+(4*2)+(3*8)+(2*9)+(1*1)=140
140 % 10 = 0
So 261528-91-0 is a valid CAS Registry Number.