663211-92-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 663211-92-5 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,3,2,1 and 1 respectively; the second part has 2 digits, 9 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 663211-92:
(8*6)+(7*6)+(6*3)+(5*2)+(4*1)+(3*1)+(2*9)+(1*2)=145
145 % 10 = 5
So 663211-92-5 is a valid CAS Registry Number.