1039843-57-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1039843-57-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,0,3,9,8,4 and 3 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1039843-57:
(9*1)+(8*0)+(7*3)+(6*9)+(5*8)+(4*4)+(3*3)+(2*5)+(1*7)=166
166 % 10 = 6
So 1039843-57-6 is a valid CAS Registry Number.