1423030-57-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1423030-57-2 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,3,0,3 and 0 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 1423030-57:
(9*1)+(8*4)+(7*2)+(6*3)+(5*0)+(4*3)+(3*0)+(2*5)+(1*7)=102
102 % 10 = 2
So 1423030-57-2 is a valid CAS Registry Number.