108129-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 108129-45-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,8,1,2 and 9 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 108129-45:
(8*1)+(7*0)+(6*8)+(5*1)+(4*2)+(3*9)+(2*4)+(1*5)=109
109 % 10 = 9
So 108129-45-9 is a valid CAS Registry Number.