650584-81-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 650584-81-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,5,0,5,8 and 4 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 650584-81:
(8*6)+(7*5)+(6*0)+(5*5)+(4*8)+(3*4)+(2*8)+(1*1)=169
169 % 10 = 9
So 650584-81-9 is a valid CAS Registry Number.