139681-62-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 139681-62-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,9,6,8 and 1 respectively; the second part has 2 digits, 6 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 139681-62:
(8*1)+(7*3)+(6*9)+(5*6)+(4*8)+(3*1)+(2*6)+(1*2)=162
162 % 10 = 2
So 139681-62-2 is a valid CAS Registry Number.