138988-88-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138988-88-2 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,9,8 and 8 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 138988-88:
(8*1)+(7*3)+(6*8)+(5*9)+(4*8)+(3*8)+(2*8)+(1*8)=202
202 % 10 = 2
So 138988-88-2 is a valid CAS Registry Number.