56201-87-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 56201-87-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 5,6,2,0 and 1 respectively; the second part has 2 digits, 8 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 56201-87:
(7*5)+(6*6)+(5*2)+(4*0)+(3*1)+(2*8)+(1*7)=107
107 % 10 = 7
So 56201-87-7 is a valid CAS Registry Number.