63658-84-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 63658-84-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,3,6,5 and 8 respectively; the second part has 2 digits, 8 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 63658-84:
(7*6)+(6*3)+(5*6)+(4*5)+(3*8)+(2*8)+(1*4)=154
154 % 10 = 4
So 63658-84-4 is a valid CAS Registry Number.