161533-98-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 161533-98-8 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,1,5,3 and 3 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 161533-98:
(8*1)+(7*6)+(6*1)+(5*5)+(4*3)+(3*3)+(2*9)+(1*8)=128
128 % 10 = 8
So 161533-98-8 is a valid CAS Registry Number.