19499-89-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19499-89-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,4,9 and 9 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 19499-89:
(7*1)+(6*9)+(5*4)+(4*9)+(3*9)+(2*8)+(1*9)=169
169 % 10 = 9
So 19499-89-9 is a valid CAS Registry Number.