168839-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 168839-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,6,8,8,3 and 9 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 168839-39:
(8*1)+(7*6)+(6*8)+(5*8)+(4*3)+(3*9)+(2*3)+(1*9)=192
192 % 10 = 2
So 168839-39-2 is a valid CAS Registry Number.