1431726-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1431726-42-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,7,2 and 6 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1431726-42:
(9*1)+(8*4)+(7*3)+(6*1)+(5*7)+(4*2)+(3*6)+(2*4)+(1*2)=139
139 % 10 = 9
So 1431726-42-9 is a valid CAS Registry Number.