1212405-71-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212405-71-4 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,4,0 and 5 respectively; the second part has 2 digits, 7 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 1212405-71:
(9*1)+(8*2)+(7*1)+(6*2)+(5*4)+(4*0)+(3*5)+(2*7)+(1*1)=94
94 % 10 = 4
So 1212405-71-4 is a valid CAS Registry Number.