67812-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 67812-57-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,7,8,1 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 67812-57:
(7*6)+(6*7)+(5*8)+(4*1)+(3*2)+(2*5)+(1*7)=151
151 % 10 = 1
So 67812-57-1 is a valid CAS Registry Number.