101091-54-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101091-54-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,0,9 and 1 respectively; the second part has 2 digits, 5 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 101091-54:
(8*1)+(7*0)+(6*1)+(5*0)+(4*9)+(3*1)+(2*5)+(1*4)=67
67 % 10 = 7
So 101091-54-7 is a valid CAS Registry Number.