401791-39-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 401791-39-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,0,1,7,9 and 1 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 401791-39:
(8*4)+(7*0)+(6*1)+(5*7)+(4*9)+(3*1)+(2*3)+(1*9)=127
127 % 10 = 7
So 401791-39-7 is a valid CAS Registry Number.