64278-17-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 64278-17-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 6,4,2,7 and 8 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 64278-17:
(7*6)+(6*4)+(5*2)+(4*7)+(3*8)+(2*1)+(1*7)=137
137 % 10 = 7
So 64278-17-7 is a valid CAS Registry Number.