664357-18-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 664357-18-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,6,4,3,5 and 7 respectively; the second part has 2 digits, 1 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 664357-18:
(8*6)+(7*6)+(6*4)+(5*3)+(4*5)+(3*7)+(2*1)+(1*8)=180
180 % 10 = 0
So 664357-18-0 is a valid CAS Registry Number.