4816-90-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4816-90-4 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,8,1 and 6 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 4816-90:
(6*4)+(5*8)+(4*1)+(3*6)+(2*9)+(1*0)=104
104 % 10 = 4
So 4816-90-4 is a valid CAS Registry Number.