15560-77-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 15560-77-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,5,5,6 and 0 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 15560-77:
(7*1)+(6*5)+(5*5)+(4*6)+(3*0)+(2*7)+(1*7)=107
107 % 10 = 7
So 15560-77-7 is a valid CAS Registry Number.