1421869-42-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421869-42-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,8,6 and 9 respectively; the second part has 2 digits, 4 and 2 respectively.
Calculate Digit Verification of CAS Registry Number 1421869-42:
(9*1)+(8*4)+(7*2)+(6*1)+(5*8)+(4*6)+(3*9)+(2*4)+(1*2)=162
162 % 10 = 2
So 1421869-42-2 is a valid CAS Registry Number.