161420-63-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161420-63-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,4,2 and 0 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 161420-63:
(8*1)+(7*6)+(6*1)+(5*4)+(4*2)+(3*0)+(2*6)+(1*3)=99
99 % 10 = 9
So 161420-63-9 is a valid CAS Registry Number.