139948-71-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139948-71-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,9,4 and 8 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 139948-71:
(8*1)+(7*3)+(6*9)+(5*9)+(4*4)+(3*8)+(2*7)+(1*1)=183
183 % 10 = 3
So 139948-71-3 is a valid CAS Registry Number.