157505-98-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 157505-98-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 1,5,7,5,0 and 5 respectively; the second part has 2 digits, 9 and 8 respectively.
Calculate Digit Verification of CAS Registry Number 157505-98:
(8*1)+(7*5)+(6*7)+(5*5)+(4*0)+(3*5)+(2*9)+(1*8)=151
151 % 10 = 1
So 157505-98-1 is a valid CAS Registry Number.