1021442-43-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021442-43-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,4,4 and 2 respectively; the second part has 2 digits, 4 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 1021442-43:
(9*1)+(8*0)+(7*2)+(6*1)+(5*4)+(4*4)+(3*2)+(2*4)+(1*3)=82
82 % 10 = 2
So 1021442-43-2 is a valid CAS Registry Number.