957513-21-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957513-21-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,5,1 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 957513-21:
(8*9)+(7*5)+(6*7)+(5*5)+(4*1)+(3*3)+(2*2)+(1*1)=192
192 % 10 = 2
So 957513-21-2 is a valid CAS Registry Number.