871890-52-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871890-52-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,7,1,8,9 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 871890-52:
(8*8)+(7*7)+(6*1)+(5*8)+(4*9)+(3*0)+(2*5)+(1*2)=207
207 % 10 = 7
So 871890-52-7 is a valid CAS Registry Number.