1545-87-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1545-87-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 1,5,4 and 5 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1545-87:
(6*1)+(5*5)+(4*4)+(3*5)+(2*8)+(1*7)=85
85 % 10 = 5
So 1545-87-5 is a valid CAS Registry Number.