157431-98-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157431-98-6 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,4,3 and 1 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157431-98:
(8*1)+(7*5)+(6*7)+(5*4)+(4*3)+(3*1)+(2*9)+(1*8)=146
146 % 10 = 6
So 157431-98-6 is a valid CAS Registry Number.