33893-34-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33893-34-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,9 and 3 respectively; the second part has 2 digits, 3 and 4 respectively.
Calculate Digit Verification of CAS Registry Number 33893-34:
(7*3)+(6*3)+(5*8)+(4*9)+(3*3)+(2*3)+(1*4)=134
134 % 10 = 4
So 33893-34-4 is a valid CAS Registry Number.