109477-72-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 109477-72-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,9,4,7 and 7 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 109477-72:
(8*1)+(7*0)+(6*9)+(5*4)+(4*7)+(3*7)+(2*7)+(1*2)=147
147 % 10 = 7
So 109477-72-7 is a valid CAS Registry Number.