10420-78-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 10420-78-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,0,4,2 and 0 respectively; the second part has 2 digits, 7 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 10420-78:
(7*1)+(6*0)+(5*4)+(4*2)+(3*0)+(2*7)+(1*8)=57
57 % 10 = 7
So 10420-78-7 is a valid CAS Registry Number.