877865-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 877865-57-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,7,8,6 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 877865-57:
(8*8)+(7*7)+(6*7)+(5*8)+(4*6)+(3*5)+(2*5)+(1*7)=251
251 % 10 = 1
So 877865-57-1 is a valid CAS Registry Number.