871889-93-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 871889-93-9 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 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 871889-93:
(8*8)+(7*7)+(6*1)+(5*8)+(4*8)+(3*9)+(2*9)+(1*3)=239
239 % 10 = 9
So 871889-93-9 is a valid CAS Registry Number.