3133-69-5 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 3133-69-5 includes 7 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 4 digits, 3,1,3 and 3 respectively; the second part has 2 digits, 6 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 3133-69:
(6*3)+(5*1)+(4*3)+(3*3)+(2*6)+(1*9)=65
65 % 10 = 5
So 3133-69-5 is a valid CAS Registry Number.