1212423-17-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1212423-17-0 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,2,1,2,4,2 and 3 respectively; the second part has 2 digits, 1 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1212423-17:
(9*1)+(8*2)+(7*1)+(6*2)+(5*4)+(4*2)+(3*3)+(2*1)+(1*7)=90
90 % 10 = 0
So 1212423-17-0 is a valid CAS Registry Number.