139905-26-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139905-26-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,0 and 5 respectively; the second part has 2 digits, 2 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 139905-26:
(8*1)+(7*3)+(6*9)+(5*9)+(4*0)+(3*5)+(2*2)+(1*6)=153
153 % 10 = 3
So 139905-26-3 is a valid CAS Registry Number.