863217-63-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 863217-63-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 8,6,3,2,1 and 7 respectively; the second part has 2 digits, 6 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 863217-63:
(8*8)+(7*6)+(6*3)+(5*2)+(4*1)+(3*7)+(2*6)+(1*3)=174
174 % 10 = 4
So 863217-63-4 is a valid CAS Registry Number.