1245157-42-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1245157-42-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,4,5,1,5 and 7 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1245157-42:
(9*1)+(8*2)+(7*4)+(6*5)+(5*1)+(4*5)+(3*7)+(2*4)+(1*2)=139
139 % 10 = 9
So 1245157-42-9 is a valid CAS Registry Number.