943987-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 943987-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,4,3,9,8 and 7 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 943987-81:
(8*9)+(7*4)+(6*3)+(5*9)+(4*8)+(3*7)+(2*8)+(1*1)=233
233 % 10 = 3
So 943987-81-3 is a valid CAS Registry Number.