33858-81-0 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33858-81-0 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,8,5 and 8 respectively; the second part has 2 digits, 8 and 1 respectively.
Calculate Digit Verification of CAS Registry Number 33858-81:
(7*3)+(6*3)+(5*8)+(4*5)+(3*8)+(2*8)+(1*1)=140
140 % 10 = 0
So 33858-81-0 is a valid CAS Registry Number.