1421780-70-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421780-70-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,7,8 and 0 respectively; the second part has 2 digits, 7 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421780-70:
(9*1)+(8*4)+(7*2)+(6*1)+(5*7)+(4*8)+(3*0)+(2*7)+(1*0)=142
142 % 10 = 2
So 1421780-70-2 is a valid CAS Registry Number.