33912-57-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33912-57-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,1 and 2 respectively; the second part has 2 digits, 5 and 7 respectively.
Calculate Digit Verification of CAS Registry Number 33912-57:
(7*3)+(6*3)+(5*9)+(4*1)+(3*2)+(2*5)+(1*7)=111
111 % 10 = 1
So 33912-57-1 is a valid CAS Registry Number.