42800-72-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 42800-72-6 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 4,2,8,0 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 42800-72:
(7*4)+(6*2)+(5*8)+(4*0)+(3*0)+(2*7)+(1*2)=96
96 % 10 = 6
So 42800-72-6 is a valid CAS Registry Number.