3808-73-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3808-73-9 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,8,0 and 8 respectively; the second part has 2 digits, 7 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 3808-73:
(6*3)+(5*8)+(4*0)+(3*8)+(2*7)+(1*3)=99
99 % 10 = 9
So 3808-73-9 is a valid CAS Registry Number.