905789-81-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 905789-81-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,5,7,8 and 9 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 905789-81:
(8*9)+(7*0)+(6*5)+(5*7)+(4*8)+(3*9)+(2*8)+(1*1)=213
213 % 10 = 3
So 905789-81-3 is a valid CAS Registry Number.