666210-16-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 666210-16-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,6,2,1 and 0 respectively; the second part has 2 digits, 1 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 666210-16:
(8*6)+(7*6)+(6*6)+(5*2)+(4*1)+(3*0)+(2*1)+(1*6)=148
148 % 10 = 8
So 666210-16-8 is a valid CAS Registry Number.