33972-39-3 Usage
Check Digit Verification of cas no
The CAS Registry Mumber 33972-39-3 includes 8 digits separated into 3 groups by hyphens. The first part of the number,starting from the left, has 5 digits, 3,3,9,7 and 2 respectively; the second part has 2 digits, 3 and 9 respectively.
Calculate Digit Verification of CAS Registry Number 33972-39:
(7*3)+(6*3)+(5*9)+(4*7)+(3*2)+(2*3)+(1*9)=133
133 % 10 = 3
So 33972-39-3 is a valid CAS Registry Number.