138200-44-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 138200-44-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,3,8,2,0 and 0 respectively; the second part has 2 digits, 4 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 138200-44:
(8*1)+(7*3)+(6*8)+(5*2)+(4*0)+(3*0)+(2*4)+(1*4)=99
99 % 10 = 9
So 138200-44-9 is a valid CAS Registry Number.