139438-02-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139438-02-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,3 and 8 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139438-02:
(8*1)+(7*3)+(6*9)+(5*4)+(4*3)+(3*8)+(2*0)+(1*2)=141
141 % 10 = 1
So 139438-02-1 is a valid CAS Registry Number.