109101-88-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109101-88-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,0 and 1 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 109101-88:
(8*1)+(7*0)+(6*9)+(5*1)+(4*0)+(3*1)+(2*8)+(1*8)=94
94 % 10 = 4
So 109101-88-4 is a valid CAS Registry Number.