33299-25-1 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33299-25-1 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,2,9 and 9 respectively; the second part has 2 digits, 2 and 5 respectively.
Calculate Digit Verification of CAS Registry Number 33299-25:
(7*3)+(6*3)+(5*2)+(4*9)+(3*9)+(2*2)+(1*5)=121
121 % 10 = 1
So 33299-25-1 is a valid CAS Registry Number.