1016493-57-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1016493-57-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,1,6,4,9 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1016493-57:
(9*1)+(8*0)+(7*1)+(6*6)+(5*4)+(4*9)+(3*3)+(2*5)+(1*7)=134
134 % 10 = 4
So 1016493-57-4 is a valid CAS Registry Number.