664358-27-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 664358-27-4 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 8 respectively; the second part has 2 digits, 2 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 664358-27:
(8*6)+(7*6)+(6*4)+(5*3)+(4*5)+(3*8)+(2*2)+(1*7)=184
184 % 10 = 4
So 664358-27-4 is a valid CAS Registry Number.