4534-67-2 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 4534-67-2 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 4,5,3 and 4 respectively; the second part has 2 digits, 6 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 4534-67:
(6*4)+(5*5)+(4*3)+(3*4)+(2*6)+(1*7)=92
92 % 10 = 2
So 4534-67-2 is a valid CAS Registry Number.