33312-20-8 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33312-20-8 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,3,1 and 2 respectively; the second part has 2 digits, 2 and 0 respectively.
Calculate Digit Verification of CAS Registry Number 33312-20:
(7*3)+(6*3)+(5*3)+(4*1)+(3*2)+(2*2)+(1*0)=68
68 % 10 = 8
So 33312-20-8 is a valid CAS Registry Number.