1021067-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1021067-57-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,2,1,0,6 and 7 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1021067-57:
(9*1)+(8*0)+(7*2)+(6*1)+(5*0)+(4*6)+(3*7)+(2*5)+(1*7)=91
91 % 10 = 1
So 1021067-57-1 is a valid CAS Registry Number.