51557-87-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 51557-87-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,1,5,5 and 7 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 51557-87:
(7*5)+(6*1)+(5*5)+(4*5)+(3*7)+(2*8)+(1*7)=130
130 % 10 = 0
So 51557-87-0 is a valid CAS Registry Number.