1001020-32-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1001020-32-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,0,1,0,2 and 0 respectively; the second part has 2 digits, 3 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1001020-32:
(9*1)+(8*0)+(7*0)+(6*1)+(5*0)+(4*2)+(3*0)+(2*3)+(1*2)=31
31 % 10 = 1
So 1001020-32-1 is a valid CAS Registry Number.