1431137-45-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1431137-45-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,3,1,1,3 and 7 respectively; the second part has 2 digits, 4 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 1431137-45:
(9*1)+(8*4)+(7*3)+(6*1)+(5*1)+(4*3)+(3*7)+(2*4)+(1*5)=119
119 % 10 = 9
So 1431137-45-9 is a valid CAS Registry Number.