138789-85-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138789-85-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,7,8 and 9 respectively; the second part has 2 digits, 8 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 138789-85:
(8*1)+(7*3)+(6*8)+(5*7)+(4*8)+(3*9)+(2*8)+(1*5)=192
192 % 10 = 2
So 138789-85-2 is a valid CAS Registry Number.