181053-74-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 181053-74-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,8,1,0,5 and 3 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 181053-74:
(8*1)+(7*8)+(6*1)+(5*0)+(4*5)+(3*3)+(2*7)+(1*4)=117
117 % 10 = 7
So 181053-74-7 is a valid CAS Registry Number.