642435-47-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 642435-47-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 6,4,2,4,3 and 5 respectively; the second part has 2 digits, 4 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 642435-47:
(8*6)+(7*4)+(6*2)+(5*4)+(4*3)+(3*5)+(2*4)+(1*7)=150
150 % 10 = 0
So 642435-47-0 is a valid CAS Registry Number.