1291780-52-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1291780-52-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,9,1,7,8 and 0 respectively; the second part has 2 digits, 5 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1291780-52:
(9*1)+(8*2)+(7*9)+(6*1)+(5*7)+(4*8)+(3*0)+(2*5)+(1*2)=173
173 % 10 = 3
So 1291780-52-3 is a valid CAS Registry Number.