161986-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161986-97-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,9,8 and 6 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 161986-97:
(8*1)+(7*6)+(6*1)+(5*9)+(4*8)+(3*6)+(2*9)+(1*7)=176
176 % 10 = 6
So 161986-97-6 is a valid CAS Registry Number.