9005-10-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 9005-10-1 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 9,0,0 and 5 respectively; the second part has 2 digits, 1 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 9005-10:
(6*9)+(5*0)+(4*0)+(3*5)+(2*1)+(1*0)=71
71 % 10 = 1
So 9005-10-1 is a valid CAS Registry Number.