219673-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 219673-89-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 2,1,9,6,7 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 219673-89:
(8*2)+(7*1)+(6*9)+(5*6)+(4*7)+(3*3)+(2*8)+(1*9)=169
169 % 10 = 9
So 219673-89-9 is a valid CAS Registry Number.