431949-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431949-52-9 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,9,4 and 9 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 431949-52:
(8*4)+(7*3)+(6*1)+(5*9)+(4*4)+(3*9)+(2*5)+(1*2)=159
159 % 10 = 9
So 431949-52-9 is a valid CAS Registry Number.