109129-70-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109129-70-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,1,2 and 9 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 109129-70:
(8*1)+(7*0)+(6*9)+(5*1)+(4*2)+(3*9)+(2*7)+(1*0)=116
116 % 10 = 6
So 109129-70-6 is a valid CAS Registry Number.