72957-88-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 72957-88-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,2,9,5 and 7 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 72957-88:
(7*7)+(6*2)+(5*9)+(4*5)+(3*7)+(2*8)+(1*8)=171
171 % 10 = 1
So 72957-88-1 is a valid CAS Registry Number.