1005053-21-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1005053-21-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,5,0,5 and 3 respectively; the second part has 2 digits, 2 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1005053-21:
(9*1)+(8*0)+(7*0)+(6*5)+(5*0)+(4*5)+(3*3)+(2*2)+(1*1)=73
73 % 10 = 3
So 1005053-21-3 is a valid CAS Registry Number.