17403-33-7 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 17403-33-7 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 1,7,4,0 and 3 respectively; the second part has 2 digits, 3 and 3 respectively.
Calculate Digit Verification of CAS Registry Number 17403-33:
(7*1)+(6*7)+(5*4)+(4*0)+(3*3)+(2*3)+(1*3)=87
87 % 10 = 7
So 17403-33-7 is a valid CAS Registry Number.