76520-25-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 76520-25-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,6,5,2 and 0 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 76520-25:
(7*7)+(6*6)+(5*5)+(4*2)+(3*0)+(2*2)+(1*5)=127
127 % 10 = 7
So 76520-25-7 is a valid CAS Registry Number.