189321-78-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 189321-78-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,9,3,2 and 1 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 189321-78:
(8*1)+(7*8)+(6*9)+(5*3)+(4*2)+(3*1)+(2*7)+(1*8)=166
166 % 10 = 6
So 189321-78-6 is a valid CAS Registry Number.