1303972-97-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1303972-97-5 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,3,0,3,9,7 and 2 respectively; the second part has 2 digits, 9 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1303972-97:
(9*1)+(8*3)+(7*0)+(6*3)+(5*9)+(4*7)+(3*2)+(2*9)+(1*7)=155
155 % 10 = 5
So 1303972-97-5 is a valid CAS Registry Number.