7280-41-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 7280-41-3 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 7,2,8 and 0 respectively; the second part has 2 digits, 4 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 7280-41:
(6*7)+(5*2)+(4*8)+(3*0)+(2*4)+(1*1)=93
93 % 10 = 3
So 7280-41-3 is a valid CAS Registry Number.