19839-01-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 19839-01-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,9,8,3 and 9 respectively; the second part has 2 digits, 0 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 19839-01:
(7*1)+(6*9)+(5*8)+(4*3)+(3*9)+(2*0)+(1*1)=141
141 % 10 = 1
So 19839-01-1 is a valid CAS Registry Number.