75815-09-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 75815-09-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 7,5,8,1 and 5 respectively; the second part has 2 digits, 0 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 75815-09:
(7*7)+(6*5)+(5*8)+(4*1)+(3*5)+(2*0)+(1*9)=147
147 % 10 = 7
So 75815-09-7 is a valid CAS Registry Number.