166535-68-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 166535-68-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,6,5,3 and 5 respectively; the second part has 2 digits, 6 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 166535-68:
(8*1)+(7*6)+(6*6)+(5*5)+(4*3)+(3*5)+(2*6)+(1*8)=158
158 % 10 = 8
So 166535-68-8 is a valid CAS Registry Number.