28805-76-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 28805-76-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 2,8,8,0 and 5 respectively; the second part has 2 digits, 7 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 28805-76:
(7*2)+(6*8)+(5*8)+(4*0)+(3*5)+(2*7)+(1*6)=137
137 % 10 = 7
So 28805-76-7 is a valid CAS Registry Number.