80355-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 80355-90-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 8,0,3,5 and 5 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 80355-90:
(7*8)+(6*0)+(5*3)+(4*5)+(3*5)+(2*9)+(1*0)=124
124 % 10 = 4
So 80355-90-4 is a valid CAS Registry Number.