871888-50-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871888-50-5 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 8 respectively; the second part has 2 digits, 5 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 871888-50:
(8*8)+(7*7)+(6*1)+(5*8)+(4*8)+(3*8)+(2*5)+(1*0)=225
225 % 10 = 5
So 871888-50-5 is a valid CAS Registry Number.