139393-38-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139393-38-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,3,9 and 3 respectively; the second part has 2 digits, 3 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 139393-38:
(8*1)+(7*3)+(6*9)+(5*3)+(4*9)+(3*3)+(2*3)+(1*8)=157
157 % 10 = 7
So 139393-38-7 is a valid CAS Registry Number.