1423022-34-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 1423022-34-7 includes 10 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 7 digits, 1,4,2,3,0,2 and 2 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 1423022-34:
(9*1)+(8*4)+(7*2)+(6*3)+(5*0)+(4*2)+(3*2)+(2*3)+(1*4)=97
97 % 10 = 7
So 1423022-34-7 is a valid CAS Registry Number.