431878-97-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 431878-97-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 4,3,1,8,7 and 8 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 431878-97:
(8*4)+(7*3)+(6*1)+(5*8)+(4*7)+(3*8)+(2*9)+(1*7)=176
176 % 10 = 6
So 431878-97-6 is a valid CAS Registry Number.