139426-40-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139426-40-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,4,2 and 6 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 139426-40:
(8*1)+(7*3)+(6*9)+(5*4)+(4*2)+(3*6)+(2*4)+(1*0)=137
137 % 10 = 7
So 139426-40-7 is a valid CAS Registry Number.