1421311-90-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1421311-90-1 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,1,3,1 and 1 respectively; the second part has 2 digits, 9 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 1421311-90:
(9*1)+(8*4)+(7*2)+(6*1)+(5*3)+(4*1)+(3*1)+(2*9)+(1*0)=101
101 % 10 = 1
So 1421311-90-1 is a valid CAS Registry Number.