1021085-40-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021085-40-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,0,8 and 5 respectively; the second part has 2 digits, 4 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1021085-40:
(9*1)+(8*0)+(7*2)+(6*1)+(5*0)+(4*8)+(3*5)+(2*4)+(1*0)=84
84 % 10 = 4
So 1021085-40-4 is a valid CAS Registry Number.