431053-91-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431053-91-7 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,0,5 and 3 respectively; the second part has 2 digits, 9 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 431053-91:
(8*4)+(7*3)+(6*1)+(5*0)+(4*5)+(3*3)+(2*9)+(1*1)=107
107 % 10 = 7
So 431053-91-7 is a valid CAS Registry Number.