1401667-31-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1401667-31-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,0,1,6,6 and 7 respectively; the second part has 2 digits, 3 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1401667-31:
(9*1)+(8*4)+(7*0)+(6*1)+(5*6)+(4*6)+(3*7)+(2*3)+(1*1)=129
129 % 10 = 9
So 1401667-31-9 is a valid CAS Registry Number.