1020056-31-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1020056-31-8 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,0,0,5 and 6 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1020056-31:
(9*1)+(8*0)+(7*2)+(6*0)+(5*0)+(4*5)+(3*6)+(2*3)+(1*1)=68
68 % 10 = 8
So 1020056-31-8 is a valid CAS Registry Number.