161836-73-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161836-73-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,8,3 and 6 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 161836-73:
(8*1)+(7*6)+(6*1)+(5*8)+(4*3)+(3*6)+(2*7)+(1*3)=143
143 % 10 = 3
So 161836-73-3 is a valid CAS Registry Number.