623563-89-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 623563-89-3 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,2,3,5,6 and 3 respectively; the second part has 2 digits, 8 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 623563-89:
(8*6)+(7*2)+(6*3)+(5*5)+(4*6)+(3*3)+(2*8)+(1*9)=163
163 % 10 = 3
So 623563-89-3 is a valid CAS Registry Number.