1579991-61-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1579991-61-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,5,7,9,9,9 and 1 respectively; the second part has 2 digits, 6 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1579991-61:
(9*1)+(8*5)+(7*7)+(6*9)+(5*9)+(4*9)+(3*1)+(2*6)+(1*1)=249
249 % 10 = 9
So 1579991-61-9 is a valid CAS Registry Number.