149753-42-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 149753-42-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,4,9,7,5 and 3 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 149753-42:
(8*1)+(7*4)+(6*9)+(5*7)+(4*5)+(3*3)+(2*4)+(1*2)=164
164 % 10 = 4
So 149753-42-4 is a valid CAS Registry Number.