261957-28-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 261957-28-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,6,1,9,5 and 7 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 261957-28:
(8*2)+(7*6)+(6*1)+(5*9)+(4*5)+(3*7)+(2*2)+(1*8)=162
162 % 10 = 2
So 261957-28-2 is a valid CAS Registry Number.