57681-12-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 57681-12-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,7,6,8 and 1 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 57681-12:
(7*5)+(6*7)+(5*6)+(4*8)+(3*1)+(2*1)+(1*2)=146
146 % 10 = 6
So 57681-12-6 is a valid CAS Registry Number.