1211411-56-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1211411-56-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,1,4,1 and 1 respectively; the second part has 2 digits, 5 and 6 respectively.
Calculate Digit Verification of CAS Registry Number 1211411-56:
(9*1)+(8*2)+(7*1)+(6*1)+(5*4)+(4*1)+(3*1)+(2*5)+(1*6)=81
81 % 10 = 1
So 1211411-56-1 is a valid CAS Registry Number.