1216609-93-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1216609-93-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,6,6,0 and 9 respectively; the second part has 2 digits, 9 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1216609-93:
(9*1)+(8*2)+(7*1)+(6*6)+(5*6)+(4*0)+(3*9)+(2*9)+(1*3)=146
146 % 10 = 6
So 1216609-93-6 is a valid CAS Registry Number.