101901-49-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 101901-49-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,0,1,9,0 and 1 respectively; the second part has 2 digits, 4 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 101901-49:
(8*1)+(7*0)+(6*1)+(5*9)+(4*0)+(3*1)+(2*4)+(1*9)=79
79 % 10 = 9
So 101901-49-9 is a valid CAS Registry Number.