139745-12-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139745-12-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,7,4 and 5 respectively; the second part has 2 digits, 1 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139745-12:
(8*1)+(7*3)+(6*9)+(5*7)+(4*4)+(3*5)+(2*1)+(1*2)=153
153 % 10 = 3
So 139745-12-3 is a valid CAS Registry Number.