6215-28-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 6215-28-7 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 6,2,1 and 5 respectively; the second part has 2 digits, 2 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 6215-28:
(6*6)+(5*2)+(4*1)+(3*5)+(2*2)+(1*8)=77
77 % 10 = 7
So 6215-28-7 is a valid CAS Registry Number.