668493-46-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 668493-46-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,8,4,9 and 3 respectively; the second part has 2 digits, 4 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 668493-46:
(8*6)+(7*6)+(6*8)+(5*4)+(4*9)+(3*3)+(2*4)+(1*6)=217
217 % 10 = 7
So 668493-46-7 is a valid CAS Registry Number.