1212840-30-6 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212840-30-6 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,8,4 and 0 respectively; the second part has 2 digits, 3 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1212840-30:
(9*1)+(8*2)+(7*1)+(6*2)+(5*8)+(4*4)+(3*0)+(2*3)+(1*0)=106
106 % 10 = 6
So 1212840-30-6 is a valid CAS Registry Number.