52969-91-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 52969-91-2 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,2,9,6 and 9 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 52969-91:
(7*5)+(6*2)+(5*9)+(4*6)+(3*9)+(2*9)+(1*1)=162
162 % 10 = 2
So 52969-91-2 is a valid CAS Registry Number.