871885-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871885-77-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,8,8 and 5 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 871885-77:
(8*8)+(7*7)+(6*1)+(5*8)+(4*8)+(3*5)+(2*7)+(1*7)=227
227 % 10 = 7
So 871885-77-7 is a valid CAS Registry Number.