210642-66-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 210642-66-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,0,6,4 and 2 respectively; the second part has 2 digits, 6 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 210642-66:
(8*2)+(7*1)+(6*0)+(5*6)+(4*4)+(3*2)+(2*6)+(1*6)=93
93 % 10 = 3
So 210642-66-3 is a valid CAS Registry Number.