100572-42-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100572-42-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,5,7 and 2 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 100572-42:
(8*1)+(7*0)+(6*0)+(5*5)+(4*7)+(3*2)+(2*4)+(1*2)=77
77 % 10 = 7
So 100572-42-7 is a valid CAS Registry Number.