166256-70-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166256-70-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,2,5 and 6 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 166256-70:
(8*1)+(7*6)+(6*6)+(5*2)+(4*5)+(3*6)+(2*7)+(1*0)=148
148 % 10 = 8
So 166256-70-8 is a valid CAS Registry Number.