100185-57-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 100185-57-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,0,1,8 and 5 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 100185-57:
(8*1)+(7*0)+(6*0)+(5*1)+(4*8)+(3*5)+(2*5)+(1*7)=77
77 % 10 = 7
So 100185-57-7 is a valid CAS Registry Number.