957490-80-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 957490-80-1 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,5,7,4,9 and 0 respectively; the second part has 2 digits, 8 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 957490-80:
(8*9)+(7*5)+(6*7)+(5*4)+(4*9)+(3*0)+(2*8)+(1*0)=221
221 % 10 = 1
So 957490-80-1 is a valid CAS Registry Number.