902453-77-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 902453-77-4 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 9,0,2,4,5 and 3 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 902453-77:
(8*9)+(7*0)+(6*2)+(5*4)+(4*5)+(3*3)+(2*7)+(1*7)=154
154 % 10 = 4
So 902453-77-4 is a valid CAS Registry Number.