39900-19-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 39900-19-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,9,9,0 and 0 respectively; the second part has 2 digits, 1 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 39900-19:
(7*3)+(6*9)+(5*9)+(4*0)+(3*0)+(2*1)+(1*9)=131
131 % 10 = 1
So 39900-19-1 is a valid CAS Registry Number.