138874-39-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138874-39-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,8,7 and 4 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 138874-39:
(8*1)+(7*3)+(6*8)+(5*8)+(4*7)+(3*4)+(2*3)+(1*9)=172
172 % 10 = 2
So 138874-39-2 is a valid CAS Registry Number.