16311-33-4 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 16311-33-4 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,6,3,1 and 1 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 16311-33:
(7*1)+(6*6)+(5*3)+(4*1)+(3*1)+(2*3)+(1*3)=74
74 % 10 = 4
So 16311-33-4 is a valid CAS Registry Number.