877681-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 877681-16-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,6,8 and 1 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 877681-16:
(8*8)+(7*7)+(6*7)+(5*6)+(4*8)+(3*1)+(2*1)+(1*6)=228
228 % 10 = 8
So 877681-16-8 is a valid CAS Registry Number.