803665-88-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 803665-88-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,0,3,6,6 and 5 respectively; the second part has 2 digits, 8 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 803665-88:
(8*8)+(7*0)+(6*3)+(5*6)+(4*6)+(3*5)+(2*8)+(1*8)=175
175 % 10 = 5
So 803665-88-5 is a valid CAS Registry Number.