138981-02-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138981-02-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,8 and 1 respectively; the second part has 2 digits, 0 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 138981-02:
(8*1)+(7*3)+(6*8)+(5*9)+(4*8)+(3*1)+(2*0)+(1*2)=159
159 % 10 = 9
So 138981-02-9 is a valid CAS Registry Number.