1297273-52-9 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1297273-52-9 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,7,2,7 and 3 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1297273-52:
(9*1)+(8*2)+(7*9)+(6*7)+(5*2)+(4*7)+(3*3)+(2*5)+(1*2)=189
189 % 10 = 9
So 1297273-52-9 is a valid CAS Registry Number.