15920-75-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15920-75-9 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,9,2 and 0 respectively; the second part has 2 digits, 7 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 15920-75:
(7*1)+(6*5)+(5*9)+(4*2)+(3*0)+(2*7)+(1*5)=109
109 % 10 = 9
So 15920-75-9 is a valid CAS Registry Number.