303142-77-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 303142-77-0 includes 9 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 6 digits, 3,0,3,1,4 and 2 respectively; the second part has 2 digits, 7 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 303142-77:
(8*3)+(7*0)+(6*3)+(5*1)+(4*4)+(3*2)+(2*7)+(1*7)=90
90 % 10 = 0
So 303142-77-0 is a valid CAS Registry Number.