1213780-72-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1213780-72-3 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,3,7,8 and 0 respectively; the second part has 2 digits, 7 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1213780-72:
(9*1)+(8*2)+(7*1)+(6*3)+(5*7)+(4*8)+(3*0)+(2*7)+(1*2)=133
133 % 10 = 3
So 1213780-72-3 is a valid CAS Registry Number.