957997-64-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957997-64-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,9,9 and 7 respectively; the second part has 2 digits, 6 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 957997-64:
(8*9)+(7*5)+(6*7)+(5*9)+(4*9)+(3*7)+(2*6)+(1*4)=267
267 % 10 = 7
So 957997-64-7 is a valid CAS Registry Number.