34456-74-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 34456-74-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,4,4,5 and 6 respectively; the second part has 2 digits, 7 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 34456-74:
(7*3)+(6*4)+(5*4)+(4*5)+(3*6)+(2*7)+(1*4)=121
121 % 10 = 1
So 34456-74-1 is a valid CAS Registry Number.