281191-93-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 281191-93-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,8,1,1,9 and 1 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 281191-93:
(8*2)+(7*8)+(6*1)+(5*1)+(4*9)+(3*1)+(2*9)+(1*3)=143
143 % 10 = 3
So 281191-93-3 is a valid CAS Registry Number.